Task: Please answer the multiple choice question.
Question: Rank these molecules from shortest to longest half life in humans after IV administration.
Constraint: You must select all options from a or b without using any other words.
Options:
a.) C[C@@H](CN1CC(=O)NC(=O)C1)N1CC(=O)NC(=O)C1
b.) CN(CC(N)=O)C(=O)N(CCCl)N=O
Answer: b
Task: Please answer the multiple choice question.
Question: Rank these molecules from shortest to longest {half_life_duration__names__noun}.
Constraint: You must select all options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%half_life_duration%}
Answer: {%multiple_choice_result}
2-[[2-chloroethyl(nitroso)carbamoyl]-methylamino]acetamide