Task: Answer the multiple choice question.
Question: Which drug exhibits a 1.286\% 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, c, or d without using any additional words.
Options:
(a) COc1cc(NC(=O)C23CC4CC(C2)CC(n2nnc(C)n2)(C4)C3)c(OC)cc1Cl
(b) N#Cc1cc(-c2ccccc2)nn1-c1ccccc1
(c) COc1ccc(CCNS(=O)(=O)c2ccc(N3CCCC3=O)cc2)cc1
(d) CCOC(=O)C(O)(CC(=O)c1ccccc1)C(F)(F)F
Answer: d. CCOC(=O)C(O)(CC(=O)c1ccccc1)C(F)(F)F
{#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#}
CCOC(=O)C(O)(CC(=O)c1ccccc1)C(F)(F)F
CCOC(=O)C(O)(CC(=O)c1ccccc1)C(F)(F)F
1-ethoxy-2-hydroxy-4-phenyl-2-(trifluoromethyl)butane-1,4-dione