Problem statement: Answer the MCQ question.
Question: Which drug has a 5.271\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(Cl)cc1
b) Oc1ccccc1N=Cc1c(O)ccc2oc3c(c12)CCCC3
c) COc1ccccc1NC(=O)CSc1nnc(-c2ccco2)n1N
Answer: a. O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(Cl)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#}
O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(Cl)cc1
O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(Cl)cc1
3-[1-[(4-chlorophenyl)methyl]benzimidazol-2-yl]-1H-pyridin-2-one