Task: Answer the MCQ question.
Question: Which drug has a -2.049\% 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. COc1cc(Br)cc(CNc2ccc(F)c([N+](=O)[O-])c2)c1O
b. O=c1[nH]c2cc3c(cc2cc1C(c1nnnn1CC1CCCO1)N1CCCCCC1)OCCO3
c. CCOC(=O)C1=C(C)N(c2ccc(OC)cc2)C(=O)/C1=C\c1cccs1
d. O=C(O)CCC(=O)/C=C/c1ccccc1
Answer: d. O=C(O)CCC(=O)/C=C/c1ccccc1
{#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#}
O=C(O)CCC(=O)/C=C/c1ccccc1
O=C(O)CCC(=O)/C=C/c1ccccc1
(E)-4-oxo-6-phenylhex-5-enoic acid