The correct answer is B. 62.
A turnout is a railway track arrangement that allows trains to change from one track to another. It consists of two rails that diverge from each other, and a frog that allows the wheels of the train to cross from one rail to the other.
The number of sleepers required for a turnout depends on the type of turnout, the gauge of the track, and the weight of the trains that will be using it. For a 1 in 12 turnout in Broad Gauge, the total number of sleepers is 62.
Option A is incorrect because it is the number of sleepers required for a 1 in 18 turnout in Broad Gauge. Option C is incorrect because it is the number of sleepers required for a 1 in 20 turnout in Broad Gauge. Option D is incorrect because it is the number of sleepers required for a 1 in 24 turnout in Broad Gauge.