In the reaction:
`A+B_(2) rarr AB_(2)`
Find out in which option(s) `B_(2)` is limiting reagent. [Molar mass : `M_(A)=10 g "mole"^(-1), M_(B)=20 g "mol"^(-1)`]
A. 300 atoms of A + 200 molecules of `B_(2)`
B. 2 mole A+3 gram-atom of B
C. 100 mole A atoms +100 mole B atoms
D. 5 gram-atom of A + 12.5 gram molecule of `B_(2)`
