Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 2.523\% 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 Cc1[nH]c2ccccc2c1SCc1nnc(SCc2ccccc2)n1C
b S=C(NCc1cccs1)Nc1ccccc1
Answer: b. S=C(NCc1cccs1)Nc1ccccc1
{#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#}
S=C(NCc1cccs1)Nc1ccccc1
S=C(NCc1cccs1)Nc1ccccc1
1-phenyl-3-(thiophen-2-ylmethyl)thiourea