Task: Answer the MCQ question.
Query: Which drug exhibits a -2.353\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CCOC(=O)C1(CCc2ccccc2)CCN(C(=O)CN2CCOC2=O)CC1
[b] COCCNC(=O)C(c1cccc(OC)c1)N(Cc1cccs1)C(=O)Cn1nnc2ccccc21
[c] Nc1nnn(CC(=O)N/N=C/c2cn[nH]c2-c2ccccc2)n1
[d] O=C(CSc1ccc([N+](=O)[O-])cc1)OCC(=O)N1CCCC1=O
Answer: d. O=C(CSc1ccc([N+](=O)[O-])cc1)OCC(=O)N1CCCC1=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(CSc1ccc([N+](=O)[O-])cc1)OCC(=O)N1CCCC1=O
O=C(CSc1ccc([N+](=O)[O-])cc1)OCC(=O)N1CCCC1=O
[2-oxo-2-(2-oxopyrrolidin-1-yl)ethyl] 2-(4-nitrophenyl)sulfanylacetate