In the following diagram, the exports (in Crores of Rupees) of four companies (C1, C2, C3 and C4) are given for three consecutive years. Which of the two companies' average exports can be considered to be close during the three years?

In the following diagram, the exports (in Crores of Rupees) of four co

1.	In the following diagram, the exports (in Crores of Rupees) of four companies (C1, C2, C3 and C4) are given for three consecutive years. Which of the two companies' average exports can be considered to be close during the three years?
A.	C1 and C3
B.	C4 and C3
C.	C1 and C2
D.	C2 and C4
Answer» B. C4 and C3