Task: Answer the MCQ question.
Query: Which compound exhibits a -1.551\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a CCc1nc2ccccc2c(C(=O)Nc2cc(C)ccc2C)c1C
b CCN1CCN(C(=O)c2oc(=O)c3ccccc3c2-c2ccc(C)cc2)CC1
c CC(C)OCCCNc1ncc2c(n1)CC(c1ccc(N(C)C)cc1)CC2=O
Answer: b. CCN1CCN(C(=O)c2oc(=O)c3ccccc3c2-c2ccc(C)cc2)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#}
CCN1CCN(C(=O)c2oc(=O)c3ccccc3c2-c2ccc(C)cc2)CC1
CCN1CCN(C(=O)c2oc(=O)c3ccccc3c2-c2ccc(C)cc2)CC1
3-(4-ethylpiperazine-1-carbonyl)-4-(4-methylphenyl)isochromen-1-one