Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.942\% 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 other words.
Options:
a O=C(O)c1ccc(SCc2ccccc2)nc1
b COc1ccc(OCCC(=O)c2ccc(OC)cc2)cc1
c Cn1c(=O)n(C)c2cc(S(=O)(=O)NCCO)ccc21
d CCN(CC)CCCNC(=O)CCc1ccccc1
Answer: a. O=C(O)c1ccc(SCc2ccccc2)nc1
{#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(O)c1ccc(SCc2ccccc2)nc1
O=C(O)c1ccc(SCc2ccccc2)nc1
6-benzylsulfanylpyridine-3-carboxylic acid