Task: Answer the MCQ question.
Question: Which drug has a 2.500\% 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, d, or e without using any other words.
Options:
a: CN(CC(=O)Nc1ccccc1C(F)(F)F)C(=O)C1CCN(C(=O)c2ccc(Cl)cc2)CC1
b: Cc1nc2cc(C(=O)O)ccc2n1-c1ccc(F)cc1F
c: CCOCCCNC(=O)c1oc2ccc3c(c2c1C)C(O)CC(C)(C)O3
d: Cc1ccc(CNc2ccc3c(c2)ncn3C(C)C)cc1
e: CCCCCN(C(=O)NC(=O)Nc1nncs1)S(C)(=O)=O
Answer: b. Cc1nc2cc(C(=O)O)ccc2n1-c1ccc(F)cc1F
{#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#}
Cc1nc2cc(C(=O)O)ccc2n1-c1ccc(F)cc1F
Cc1nc2cc(C(=O)O)ccc2n1-c1ccc(F)cc1F
1-(2,4-difluorophenyl)-2-methylbenzimidazole-5-carboxylic acid