Task: Answer the MCQ question.
Question: Which drug exhibits a 15.405\% 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, d, or e without using any other words.
Options:
a) CC1(C)CC(=O)c2c(oc3ccc(NS(=O)(=O)c4cccc5cccnc45)cc23)C1
b) CCOc1ccc(NC(=O)CCC(=O)O)cc1
c) CC(=O)NC(=S)NNC(=O)CCc1ccccc1
d) CCCn1c(N)c(C(=O)CSc2nnc(Cc3ccccc3)o2)c(=O)n(C)c1=O
e) COc1ccc(OC)c(-c2nc(CN3CCCCC3c3cccnc3)c(C)o2)c1
Answer: b. CCOc1ccc(NC(=O)CCC(=O)O)cc1
{#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#}
4-(4-ethoxyanilino)-4-oxobutanoic acid