Task: Answer the MCQ question.
Question: Which compound has a 21.440\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CC(Cc1cccs1)NC(=O)Nc1ccc(F)cc1
(b) Cc1ccccc1NC(=O)CSc1nc(=O)n(CCN2CCOCC2)c2c1CCCC2
Answer: a. CC(Cc1cccs1)NC(=O)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#}
CC(Cc1cccs1)NC(=O)Nc1ccc(F)cc1
CC(Cc1cccs1)NC(=O)Nc1ccc(F)cc1
1-(4-fluorophenyl)-3-[1-(thiophen-2-yl)propan-2-yl]urea