Task: Answer the MCQ question.
Question: Which drug exhibits a 15.332\% 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. O=C(Nc1cccnc1Cl)c1cc2ccccc2o1
b. COCC(C)N=C1NN=C(c2cc(C)n(Cc3ccccc3Cl)c2C)CS1
Answer: a. O=C(Nc1cccnc1Cl)c1cc2ccccc2o1
{#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=C(Nc1cccnc1Cl)c1cc2ccccc2o1
O=C(Nc1cccnc1Cl)c1cc2ccccc2o1
N-(2-chloropyridin-3-yl)-1-benzofuran-2-carboxamide