Task: Answer the multiple-choice question.
Query: Which drug exhibits a 1.914\% 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, b, c, or d without using any other words.
Options:
a: O=C(CN1CCCC1)Nc1c2c(nc3ccccc13)N(Cc1ccccc1)CC2.O=C(O)C(=O)O
b: CCN(CC(=O)Nc1c(F)cccc1F)C(=O)Cc1csc(-c2ccccc2)n1
c: Cc1c(Cl)cccc1NC(=S)N1CCN(c2ncccn2)CC1
d: COc1cc(CO)cc(-c2cc(CO)cc(OC)c2OC)c1OC
Answer: b. CCN(CC(=O)Nc1c(F)cccc1F)C(=O)Cc1csc(-c2ccccc2)n1
{#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#}
CCN(CC(=O)Nc1c(F)cccc1F)C(=O)Cc1csc(-c2ccccc2)n1
CCN(CC(=O)Nc1c(F)cccc1F)C(=O)Cc1csc(-c2ccccc2)n1
N-[2-(2,6-difluoroanilino)-2-oxoethyl]-N-ethyl-2-(2-phenyl-1,3-thiazol-4-yl)acetamide