A chemist put 1.18 mol of substance A and 2.85 mol of substance B into a 10.0-L flask, which she then closed. A and B react by the following equation:

A(g) + 2B(g) ⇌ 3C(g) + D(g)

She found that the equilibrium mixture at 25°C contained 0.376 mol of D. How many moles of B are in the flask at equilibrium at 25°C?

a. 2.47 mol

b. 3.60 mol

c. 2.52 mol

d. 2.10 mol

e. 2.41 mol