There are two statements labelled as Assertion (A) and Reason (R).
(A) A little gap is left between iron rails.
(R) Iron expands in summer. 

Options

A. Both (A) and (R) are true.
B. Both (A) and (R) are false.
C. (A) is true and (R) is false.
D. (A) is false and (R) is true.

Answer

A

Explanation

Small gaps are left between the various rail pieces to provide space for the expansion of rail pieces when the temperature rises during summer.