Task: Answer the multiple choice question.
Query: Which drug exhibits a -1.033\% 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, or c without using any other words.
Options:
(a) CCn1cc(Br)c(C(=O)NCc2ccco2)n1
(b) CCCc1c2ccccc2nc2ccccc12
(c) COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OC
Answer: b. CCCc1c2ccccc2nc2ccccc12
{#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#}
CCCc1c2ccccc2nc2ccccc12
CCCc1c2ccccc2nc2ccccc12
9-propylacridine