Task: Answer the multiple choice question.
Question: Which drug exhibits a -4.567% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCOC(=O)CNC(=O)C1c2cc(OC)c(OC)cc2C(=O)N(C)C1c1ccccc1F
b: O=c1cc(-c2ccncc2)oc2c1ccc1ccccc12
Answer: b. O=c1cc(-c2ccncc2)oc2c1ccc1ccccc12
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=c1cc(-c2ccncc2)oc2c1ccc1ccccc12
O=c1cc(-c2ccncc2)oc2c1ccc1ccccc12
2-pyridin-4-ylbenzo[h]chromen-4-one