$1.$ A crate arrives at the receiving department containing $150$ fittings. The fittings are supposed to be identical, except for material of construction: brass, $316$ stainless steel, and carbon steel. The first $37$ fitting removed are brass, followed by $19$ stainless steel fittings. At the time the shift ends, $52$ carbon steel fittings have just been removed. Given only this information, which is the best estimate of the total number of brass fittings that were shipped in the crate.

a$.19$

b$.37$

c$.52$

d$.79$