Consider the Following Table That Shows the Number of Trucks

Multiple Choice

Consider the following table that shows the number of trucks owned by a delivery firm and the corresponding number of deliveries made. Use the table to answer the following questions.
-When the firm bought their last truck,they found that the number of deliveries increased by 10.In this case,they must have just bought truck number

A) five.
B) four.
C) three.
D) one.
E) two.