Task: Answer the multiple-choice question.
Question: Which drug has a 18.316\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: CC(C)CN1CCNC(=O)C1CC(=O)NCCc1ccc(C(F)(F)F)cc1
b: CN1CCCC(OC(=O)c2cc(F)c(F)c(F)c2F)C1.Cl
c: CN(CC(=O)Nc1ccc(OC(F)(F)F)cc1)C(=O)Cn1c(=O)cnc2ccccc21
d: O=c1ccc2ccccc2o1
e: Cc1ccc(S(=O)(=O)Oc2ccc(/C=C3/N=C(c4ccccc4)OC3=O)cc2)cc1
Answer: d. O=c1ccc2ccccc2o1
{#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=c1ccc2ccccc2o1
O=c1ccc2ccccc2o1
chromen-2-one