Task: Answer the MCQ question.
Question: Which drug exhibits a 20.900\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc(-c2cc(C(=O)Nc3c(C)nn(Cc4ccccc4Cl)c3C)no2)cc1OC
b. COP(=S)(OC)c1c(C)nn(CCC#N)c1NC(=O)c1ccc(Cl)cc1
Answer: b. COP(=S)(OC)c1c(C)nn(CCC#N)c1NC(=O)c1ccc(Cl)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COP(=S)(OC)c1c(C)nn(CCC#N)c1NC(=O)c1ccc(Cl)cc1
COP(=S)(OC)c1c(C)nn(CCC#N)c1NC(=O)c1ccc(Cl)cc1
4-chloro-N-[2-(2-cyanoethyl)-4-dimethoxyphosphinothioyl-5-methylpyrazol-3-yl]benzamide