Task: Answer the multiple-choice question.
Question: Which drug exhibits a 0.866\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CCOc1ccccc1N(CC(=O)Nc1ccc2c(c1)OCCO2)S(C)(=O)=O
b: CCN(CC)S(=O)(=O)c1cccc(-c2nnc(SCCCC(=O)c3ccccc3)o2)c1
c: O=C(c1ccncc1)N1CCN(CCc2ccccc2)CC1
d: CC(NC(=O)[C@@H](C)NC(=O)[C@@H]1Cc2ccccc2CN1C(=O)OC(C)(C)C)c1ccccc1
Answer: c. O=C(c1ccncc1)N1CCN(CCc2ccccc2)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#}
O=C(c1ccncc1)N1CCN(CCc2ccccc2)CC1
O=C(c1ccncc1)N1CCN(CCc2ccccc2)CC1
[4-(2-phenylethyl)piperazin-1-yl]-pyridin-4-ylmethanone