Task: Answer the MCQ question.
Query: Which drug exhibits a 20.504\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C(CSc1nc(C2CC2)nc2ccccc12)Nc1ccccc1Cl
[b] CN(Cc1cccnc1)C(=O)CC1C(=O)NCCN1CC(c1ccccc1)c1ccccc1
Answer: a. O=C(CSc1nc(C2CC2)nc2ccccc12)Nc1ccccc1Cl
{#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=C(CSc1nc(C2CC2)nc2ccccc12)Nc1ccccc1Cl
O=C(CSc1nc(C2CC2)nc2ccccc12)Nc1ccccc1Cl
N-(2-chlorophenyl)-2-(2-cyclopropylquinazolin-4-yl)sulfanylacetamide