Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 2.677\% 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) Nc1ccc2oc(-c3cccc(Br)c3)nc2c1
(b) COc1ccc(-c2cn3cc(C(F)(F)F)cc(Cl)c3n2)cc1
Answer: a. Nc1ccc2oc(-c3cccc(Br)c3)nc2c1
{#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#}
Nc1ccc2oc(-c3cccc(Br)c3)nc2c1
Nc1ccc2oc(-c3cccc(Br)c3)nc2c1
2-(3-bromophenyl)-1,3-benzoxazol-5-amine