how many college football quarterbacks have had 2500 passing yards 900 rushing yards and 20 passing touchdowns in a single season

Quarterbacks threw for 77,263 yards when rushing for 900+ yards and scoring 20+ passing touchdowns in 1956.

Interpreted as:

How many college football quarterbacks have had 2500 or more passing yards 900 or more rushing yards and 20 or more passing touchdowns in a single season?

	POSITION	PASS YDS	RUSH YDS	TD	SEASON	GP	CMP	ATT	PCT	AVG	YDS/G	INT	RTG	TD%	INT%
1	Quarterback	77,263	20,324	583	1956	3,541	5,617	12,797	43.9	6.0	21.8	1,113	92.2	4.6	8.7
2	Quarterback	82,744	18,462	617	1957	3,636	6,052	13,420	45.1	6.2	22.8	1,143	95.0	4.6	8.5
3	Quarterback	94,083	20,086	673	1958	3,718	7,106	15,452	46.0	6.1	25.3	1,183	96.2	4.4	7.7
4	Quarterback	99,657	17,243	693	1959	3,798	7,570	16,494	45.9	6.0	26.2	1,263	95.2	4.2	7.7
5	Quarterback	96,523	24,247	625	1960	3,460	7,425	16,018	46.4	6.0	27.9	1,193	95.0	3.9	7.4
6	Quarterback	95,901	22,845	680	1961	3,355	7,307	16,125	45.3	5.9	28.6	1,167	94.7	4.2	7.2
7	Quarterback	115,173	22,038	800	1962	3,733	8,792	18,742	46.9	6.1	30.9	1,314	98.6	4.3	7.0
8	Quarterback	116,490	26,500	760	1963	3,668	8,981	19,307	46.5	6.0	31.8	1,246	97.3	3.9	6.5
9	Quarterback	126,571	24,885	750	1964	3,507	9,658	20,341	47.5	6.2	36.1	1,338	98.8	3.7	6.6
10	Quarterback	138,144	25,519	887	1965	3,202	10,751	23,055	46.6	6.0	43.1	1,511	96.6	3.8	6.6
11	Quarterback	151,874	23,966	997	1966	3,128	11,761	24,835	47.4	6.1	48.6	1,637	98.8	4.0	6.6
12	Quarterback	153,573	22,676	952	1967	3,080	11,786	25,055	47.0	6.1	49.9	1,616	98.2	3.8	6.4
13	Quarterback	182,191	19,442	1,145	1968	2,979	13,888	29,045	47.8	6.3	61.2	1,778	101.3	3.9	6.1
14	Quarterback	179,603	18,982	1,179	1969	3,032	13,681	28,634	47.8	6.3	59.2	1,828	101.3	4.1	6.4
15	Quarterback	186,565	17,723	1,179	1970	3,313	14,295	30,429	47.0	6.1	56.3	1,962	98.4	3.9	6.4
16	Quarterback	173,146	25,287	1,065	1971	3,527	13,201	28,235	46.8	6.1	49.1	1,908	97.2	3.8	6.8
17	Quarterback	175,966	24,340	1,123	1972	3,497	13,030	27,918	46.7	6.3	50.3	1,895	99.3	4.0	6.8
18	Quarterback	177,655	31,940	1,132	1973	3,858	13,132	27,498	47.8	6.5	46.0	1,746	102.9	4.1	6.3
19	Quarterback	163,148	36,425	1,026	1974	4,039	12,015	25,188	47.7	6.5	40.4	1,594	102.9	4.1	6.3
20	Quarterback	169,985	33,756	1,001	1975	3,960	12,422	25,972	47.8	6.5	42.9	1,617	103.1	3.9	6.2
21	Quarterback	179,918	37,055	1,106	1976	4,089	13,164	27,581	47.7	6.5	44.0	1,730	103.2	4.0	6.3
22	Quarterback	208,290	31,631	1,312	1977	4,824	15,133	31,059	48.7	6.7	43.2	1,876	106.9	4.2	6.0
23	Quarterback	201,099	30,530	1,225	1978	4,033	14,930	30,689	48.6	6.6	49.9	1,901	104.5	4.0	6.2
24	Quarterback	207,735	31,829	1,249	1979	4,532	15,761	31,829	49.5	6.5	45.8	1,867	105.6	3.9	5.9
25	Quarterback	220,784	23,151	1,370	1980	4,090	17,039	33,786	50.4	6.5	54.0	1,910	107.4	4.1	5.7