Task: Answer the multiple-choice question.
Question: Which drug exhibits a 18.134\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 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(Nc1cccc(Br)c1)c1ccc(OC2CSC2)cc1
b. Nc1ccc(O)c([N+](=O)[O-])c1
c. COC(=O)c1sc(NC(=O)C2CCCCC2C(=O)O)c(C(=O)OC)c1C
d. Cc1ccc(S(=O)(=O)N2CCC(n3nnc4cc(C)ccc43)CC2)cc1
Answer: c. COC(=O)c1sc(NC(=O)C2CCCCC2C(=O)O)c(C(=O)OC)c1C
{#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#}
COC(=O)c1sc(NC(=O)C2CCCCC2C(=O)O)c(C(=O)OC)c1C
COC(=O)c1sc(NC(=O)C2CCCCC2C(=O)O)c(C(=O)OC)c1C
2-[[3,5-bis(methoxycarbonyl)-4-methylthiophen-2-yl]carbamoyl]cyclohexane-1-carboxylic acid