Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 16.556\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) COc1ccc(C(=O)Nc2cc(C(C)=O)c(C)oc2=O)cc1
(b) Cc1ccc(C2=NN3C(=O)c4ccccc4C3C2)cc1
(c) O=C(CN1CCCC1)Nc1ccc(F)cc1
(d) F[B-](F)(F)F.OCC[NH+]=c1cc(-c2ccccc2)oc2ccc(Cl)cc12
Answer: c. O=C(CN1CCCC1)Nc1ccc(F)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#}
N-(4-fluorophenyl)-2-pyrrolidin-1-ylacetamide