Problem statement: Answer the MCQ question.
Query: Which compound has a -21.268% 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) O=C(Nc1ccc([N+](=O)[O-])cc1)c1ccccc1
(b) Cc1cc(C(=O)COC(=O)c2ccc(F)cc2F)c(C)n1C1CC1
(c) CC1=CN2C(=N)/C(=C/c3ccc([N+](=O)[O-])o3)C(=O)N=C2S1
(d) C=CCOCCN(CC)CC
Answer: d. C=CCOCCN(CC)CC
{#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#}
C=CCOCCN(CC)CC
C=CCOCCN(CC)CC
N,N-diethyl-2-prop-2-enoxyethanamine