Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 6.488\% 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 additional words.
Options:
a. O=C(NC1CCCCC1)C(=O)c1c(-c2ccccc2)[nH]c2ccccc12
b. Cc1ccnc(NC(=O)c2cccc3ccccc23)c1
c. C=C(C(=O)O)C(CCCCCC)C(=O)O
d. Cc1c(Cc2ccccc2)sc(NC(=O)/C=C/c2cccc3ccccc23)c1C(N)=O
Answer: c. C=C(C(=O)O)C(CCCCCC)C(=O)O
{#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#}
C=C(C(=O)O)C(CCCCCC)C(=O)O
C=C(C(=O)O)C(CCCCCC)C(=O)O
2-hexyl-3-methylidenebutanedioic acid