Task: Answer the multiple choice question.
Query: Which drug has a 13.912\% 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. C(=N/n1cnnc1)\c1cccc2ccccc12
b. CCOC(=O)c1c(N)sc(C(=O)OC)c1C
c. CCn1cc(S(=O)(=O)c2ccc(C)cc2)c(=O)c2cc(OC)ccc21
d. COc1ccc(N2CCN(C(CNC(=O)c3ccc4c(c3)OCO4)c3cccnc3)CC2)cc1
Answer: b. CCOC(=O)c1c(N)sc(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#}
CCOC(=O)c1c(N)sc(C(=O)OC)c1C
CCOC(=O)c1c(N)sc(C(=O)OC)c1C
4-O-ethyl 2-O-methyl 5-amino-3-methylthiophene-2,4-dicarboxylate