A Long Steel Beam Has a Length of Fifty Meters $\degree$

A long steel beam has a length of fifty meters on a cold day when the temperature is 0 $\degree$ C. What is the length of the beam on a hot day when T = 40 $\degree$ C? ( $\alpha$ _steel= 1.1 *10 ^{- 5}/ $\degree$ C)

A) 50.044 m
B) 50.022 m
C) 50.088 m
D) 50.0044 m