Task: Answer the multiple-choice question.
Query: Which drug exhibits a 19.922\% human ether-à-go-go related gene (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(c1cccc(COc2cccc3ccccc23)c1)N1CCCC1
[b] O=S(=O)(/N=C(/Nc1cccc2ccccc12)c1ccccc1)c1ccc(F)cc1
Answer: b. O=S(=O)(/N=C(/Nc1cccc2ccccc12)c1ccccc1)c1ccc(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#}
O=S(=O)(/N=C(/Nc1cccc2ccccc12)c1ccccc1)c1ccc(F)cc1
O=S(=O)(/N=C(/Nc1cccc2ccccc12)c1ccccc1)c1ccc(F)cc1
N'-(4-fluorophenyl)sulfonyl-N-naphthalen-1-ylbenzenecarboximidamide