Task: Answer the MCQ question.
Question: Which drug has a 2.238\% 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 other words.
Options:
a.) O=C(CN1C(=O)c2cccc3cccc1c23)NCc1ccncc1
b.) Cc1cccc(N2CCN(S(=O)(=O)c3ccc4c(c3)NC(=O)CS4)CC2)c1C
c.) COc1ccccc1CNC(=O)C(=O)NCC1CCCO1
d.) O=c1[nH]cccc1-c1nc2ccccc2n1Cc1cccc(Cl)c1
Answer: d. O=c1[nH]cccc1-c1nc2ccccc2n1Cc1cccc(Cl)c1
{#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-c1nc2ccccc2n1Cc1cccc(Cl)c1
O=c1[nH]cccc1-c1nc2ccccc2n1Cc1cccc(Cl)c1
3-[1-[(3-chlorophenyl)methyl]benzimidazol-2-yl]-1H-pyridin-2-one