Consider the Hypothetical Reaction a + 2 B $\rightarrow$ AB₂

Consider the hypothetical reaction A + 2 B $\rightarrow$ AB₂.If 2 moles of A and 5 moles of B are placed in a container an allowed to react,how many moles of AB₂ will be formed and how many moles of which reactant will remain unreacted?

A) 2 moles of AB₂ will form and 3 moles of B will remain unreacted.
B) 2 moles of AB₂ will form and 1 mole of B will remain unreacted.
C) 5 moles of AB₂ will form and 3 moles of B will remain unreacted.
D) 4 moles of AB₂ will form and 1 mole of B will remain unreacted.
E) 5/2 (2.5) moles of AB₂ will form and nothing will remain unreacted.