Task: Answer the multiple-choice question.
Question: Which compound exhibits a 8.252\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) Cn1c(Nc2ccccc2)nc2ccccc21
b) CC(C)COC(=O)n1ccc(C(=O)N2CCCCC2)n1
c) Cc1sc2nc(NCCO)[nH]c(=O)c2c1C
d) O=C(Cn1c(=O)oc2cc(S(=O)(=O)N3CCCC3)ccc21)Nc1ccc(C(F)(F)F)cc1
Answer: a. Cn1c(Nc2ccccc2)nc2ccccc21
{#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#}
Cn1c(Nc2ccccc2)nc2ccccc21
Cn1c(Nc2ccccc2)nc2ccccc21
1-methyl-N-phenylbenzimidazol-2-amine