The following table includes delivery data. Based on the data provided, select the best response to each question below.

Delivery Station Data

Region	Delivery Station	Deliveries per driver	# of Drivers	# Deliveries	Delivery completion rate	Avg time per delivery	Traffic conditions	Avg loading time at delivery station	Avg route distance
A	AA	56.88	16	910	98%	7	Good	5	6
A	AB	35.92	25	898	99%	7	Medium	9	4
A	AC	64.07	15	961	95%	4	Good	5	9
B	BD	35.26	27	952	98%	12	Medium	9	7
B	BE	45.58	19	866	97%	20	Poor	6	8
B	BF	31.88	24	765	99%	11	Medium	8	4
C	CG	47.13	23	1084	91%	12	Medium	7	16
C	CH	36.11	28	1011	92%	5	Good	9	15
C	CI	48.96	25	1224	90%	12	Medium	9	17
D	DJ	66.31	16	1061	97%	14	Poor	5	7
D	DK	56.53	15	848	99%	28	Poor	5	5
D	DL	63.29	17	1076	98%	7	Medium	6	5
E	EM	39.09	23	899	93%	6	Good	7	10
E	EN	28.07	29	814	95%	5	Good	10	8
E	EO	34.74	23	799	94%	17	Poor	8	9

What appears to be the biggest factor impacting the average time per delivery?