Task: Answer the multiple-choice question.
Question: Which drug exhibits a 6.551\% 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) CCCOc1ccccc1C1NC(=O)NC(C)=C1C(=O)OCCOC(C)C
(b) COc1ccccc1NC(=O)c1sc2nc(-c3ccco3)ccc2c1N
(c) CCn1c2ccccc2c2nnc(SCc3ccccc3)nc21
(d) Cc1onc(-c2ccccc2)c1C(=O)c1ccccc1
Answer: c. CCn1c2ccccc2c2nnc(SCc3ccccc3)nc21
{#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#}
CCn1c2ccccc2c2nnc(SCc3ccccc3)nc21
CCn1c2ccccc2c2nnc(SCc3ccccc3)nc21
3-benzylsulfanyl-5-ethyl-[1,2,4]triazino[5,6-b]indole