Task: Answer the MCQ question.
Question: Which drug exhibits a -0.942\% 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 or b without using any additional words.
Options:
a. COc1ccc(OCCCCn2c(CO)nc3ccccc32)cc1
b. Cc1ccc(-c2nc3ncccc3o2)cc1NC(=O)C(C)C
Answer: a. COc1ccc(OCCCCn2c(CO)nc3ccccc32)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#}
COc1ccc(OCCCCn2c(CO)nc3ccccc32)cc1
COc1ccc(OCCCCn2c(CO)nc3ccccc32)cc1
[1-[4-(4-methoxyphenoxy)butyl]benzimidazol-2-yl]methanol