Problem statement: Answer the MCQ question.
Question: Which drug has a 0.943\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) O=C(NCC1CCCO1)c1coc2nc3ccccc3nc12
(b) CC(=O)c1ccc2c(c1)Nc1ccccc1S2
(c) Cc1ccc2oc(=O)n(CCCOc3ccccc3)c2c1
Answer: b. CC(=O)c1ccc2c(c1)Nc1ccccc1S2
{#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#}
1-(10H-phenothiazin-2-yl)ethanone