Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 18.910\% 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 Brc1ccc(OCc2nnnn2-c2ccccc2)cc1
b Cc1ccnc(NC(=S)N2CCN(c3cccc(C(F)(F)F)c3)CC2)c1
Answer: a. Brc1ccc(OCc2nnnn2-c2ccccc2)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#}
Brc1ccc(OCc2nnnn2-c2ccccc2)cc1
Brc1ccc(OCc2nnnn2-c2ccccc2)cc1
5-[(4-bromophenoxy)methyl]-1-phenyltetrazole