Task: Answer the MCQ question.
Question: Which compound exhibits a 0.355\% 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: NC(=O)CCn1c(=O)oc2ccccc21
b: CCCC(=O)c1cc(F)c(N2CCN(S(=O)(=O)c3ccccc3)CC2)cc1C
c: CCc1ccc(OCCCC(=O)O)c(Br)c1
d: NC(=O)CN1CCN(C(=O)Nc2ccccc2)CC1
Answer: d. NC(=O)CN1CCN(C(=O)Nc2ccccc2)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#}
NC(=O)CN1CCN(C(=O)Nc2ccccc2)CC1
NC(=O)CN1CCN(C(=O)Nc2ccccc2)CC1
4-(2-amino-2-oxoethyl)-N-phenylpiperazine-1-carboxamide