Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 15.302\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C1/C(=C/c2ccc(Br)cc2)Oc2cc(O)ccc21
b. CCSc1nnc(NC(=O)COc2ccc(Cl)cc2)s1
Answer: a. O=C1/C(=C/c2ccc(Br)cc2)Oc2cc(O)ccc21
{#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#}
(2Z)-2-[(4-bromophenyl)methylidene]-6-hydroxy-1-benzofuran-3-one