Task: Answer the MCQ question.
Question: Which drug exhibits a 5.061\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C(NC(=S)Nc1ccc(-c2ccc(CO)o2)cc1)c1cccs1
(b) O=C(c1ccc(Cl)c([N+](=O)[O-])c1)N1CCN(c2ccccc2)CC1
Answer: b. O=C(c1ccc(Cl)c([N+](=O)[O-])c1)N1CCN(c2ccccc2)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-chloro-3-nitrophenyl)-(4-phenylpiperazin-1-yl)methanone