Genuine Parts Company reported a LIFO reserve of $398 million at the end of 2017 and a LIFO reserve of $383 million at the end of 2018. The decrease in the reserve may have resulted because:

	A.	The company sold more inventory than it purchased in 2018.
	B.	The company purchased more inventory than it sold in 2018.
	C.	Input prices decreased from 2017 to 2018.
	D.	Input prices increased from 2017 to 2018.
	E.	Both a and c
	F.	Both b and d