Task: Answer the MCQ question.
Query: Which compound exhibits a 21.887% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CC(C)C[C@H](NC(=O)c1nc[nH]c1C(=O)N[C@@H](CC(C)C)C(=O)OC(C)(C)C)C(=O)OC(C)(C)C
b: COc1cccc(-c2nn(-c3ccc(C)cc3)cc2C(=O)NCC(c2cccs2)N2CCOCC2)c1
c: CCc1cc2c(=O)c(-c3cnn(-c4ccccc4)c3)c(C(F)(F)F)oc2c(CN(C)C)c1O
d: COc1cccc(OCCSc2nc3ccccc3c(=O)[nH]2)c1
Answer: a. CC(C)C[C@H](NC(=O)c1nc[nH]c1C(=O)N[C@@H](CC(C)C)C(=O)OC(C)(C)C)C(=O)OC(C)(C)C
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CC(C)C[C@H](NC(=O)c1nc[nH]c1C(=O)N[C@@H](CC(C)C)C(=O)OC(C)(C)C)C(=O)OC(C)(C)C
CC(C)C[C@H](NC(=O)c1nc[nH]c1C(=O)N[C@@H](CC(C)C)C(=O)OC(C)(C)C)C(=O)OC(C)(C)C
tert-butyl (2S)-4-methyl-2-[[4-[[(2S)-4-methyl-1-[(2-methylpropan-2-yl)oxy]-1-oxopentan-2-yl]carbamoyl]-1H-imidazole-5-carbonyl]amino]pentanoate