Task: Answer the multiple choice question.
Question: Which drug exhibits a -1.185\% 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. Cl.c1ccc(CCN=C2CCCc3c2[nH]c2ccccc32)cc1
b. CCC(C)[C@H](NC(=O)N1CCC(C)CC1)C(=O)O
c. NC(=O)C1=NOC(CNc2ncc(C(F)(F)F)cc2Cl)C1
d. O=C(NN1C(=O)c2cc(Br)ccc2NC1c1c(O)ccc2ccccc12)c1ccc2c(c1)OCO2
Answer: b. CCC(C)[C@H](NC(=O)N1CCC(C)CC1)C(=O)O
{#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#}
CCC(C)[C@H](NC(=O)N1CCC(C)CC1)C(=O)O
CCC(C)[C@H](NC(=O)N1CCC(C)CC1)C(=O)O
(2S)-3-methyl-2-[(4-methylpiperidine-1-carbonyl)amino]pentanoic acid