Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 13.050\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a Cc1cc(O)ccc1N1C(=O)c2cccc3cc([N+](=O)[O-])cc(c23)C1=O
b O=C(O)c1ccc(Cl)cc1
c CN(C)c1oc(-c2ccccc2Cl)nc1P(=O)(c1ccccc1)c1ccccc1
Answer: b. O=C(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#}
4-chlorobenzoicacid