Task: Answer the multiple-choice question.
Question: Which compound has a 16.125\% 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 other words.
Options:
a. Cc1ccc(-c2c[n+](CC(=O)Nc3nc(-c4ccc(F)cc4)cs3)c3n2CCC3)cc1.[Cl-]
b. O=c1oc2ccc(Cl)cc2cc1-c1ccccc1
Answer: b. O=c1oc2ccc(Cl)cc2cc1-c1ccccc1
{#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#}
O=c1oc2ccc(Cl)cc2cc1-c1ccccc1
O=c1oc2ccc(Cl)cc2cc1-c1ccccc1
6-chloro-3-phenylchromen-2-one