Task: Answer the MCQ question.
Question: Which drug exhibits a -89.781\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=C(CCCN1C(=O)S/C(=C/C=C/c2ccccc2)C1=O)Nc1ccc(C(=O)O)cc1
b) CS(=O)(=O)N1CCC(c2noc(-c3ccc(C(F)(F)F)cc3)n2)CC1
c) Cc1cc(N2CCN(C)CC2)n2cc(-c3ccc(F)cc3)nc2n1
Answer: c. Cc1cc(N2CCN(C)CC2)n2cc(-c3ccc(F)cc3)nc2n1
{#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#}
2-(4-fluorophenyl)-7-methyl-5-(4-methylpiperazin-1-yl)imidazo[1,2-a]pyrimidine