Task: Answer the multiple choice question.
Question: Which drug exhibits a -1.365\% 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 or b without using any additional words.
Options:
(a) CCCCSc1nnc(CCC)n1N
(b) Cc1ccc(NC(=O)CSc2ccc(C(N)=O)cc2[N+](=O)[O-])cc1C
Answer: a. CCCCSc1nnc(CCC)n1N
{#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#}
CCCCSc1nnc(CCC)n1N
CCCCSc1nnc(CCC)n1N
3-butylsulfanyl-5-propyl-1,2,4-triazol-4-amine