Task: Answer the MCQ question.
Question: Which compound exhibits a 18.694\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: O=C(O)C1CCCCC1C(=O)NCCCN1CCCC1=O
b: COc1ccc(CN2CCN(C(=O)c3cccc4ccccc34)CC2)cc1Br
c: CCc1nnc(NC(=O)CC23CC4CC(CC(Br)(C4)C2)C3)s1
d: COc1ccc(NC(=O)C2CCN(S(=O)(=O)c3cccc4cccnc34)CC2)cc1OC
e: CC(Cc1ccco1)NC(=O)c1ccc(C(F)(F)F)cc1
Answer: a. O=C(O)C1CCCCC1C(=O)NCCCN1CCCC1=O
{#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)C1CCCCC1C(=O)NCCCN1CCCC1=O
O=C(O)C1CCCCC1C(=O)NCCCN1CCCC1=O
2-[3-(2-oxopyrrolidin-1-yl)propylcarbamoyl]cyclohexane-1-carboxylicacid