Task: Answer the MCQ question.
Query: Which drug has a 16.255\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) O=C1C=CCCC1
(b) Cc1nc2ccc(S(=O)(=O)N(C)CC(=O)N3CCc4ccccc4C3)cc2s1
(c) COc1ccccc1-n1cc(C(=O)NCC(=O)N2CCN(c3ccccc3)CC2)c2ccccc2c1=O
Answer: a. O=C1C=CCCC1
{#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#}
O=C1C=CCCC1
O=C1C=CCCC1
cyclohex-2-en-1-one