Task: Answer the multiple choice question.
Query: Which drug has a 3.926\% 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: CCCN(C(=O)CSc1nc(C2CC2)n(-c2ccccc2)n1)C1CCS(=O)(=O)C1
b: CC(C)Nc1nc(Oc2cccc(Cl)c2Cl)cc(C(F)(F)F)n1
c: COc1cc([N+](=O)[O-])c(N2CCOCC2)c([N+](=O)[O-])c1OC
d: CCCSc1nc2c(cnn2-c2ccc(F)cc2)c(=O)[nH]1
Answer: c. COc1cc([N+](=O)[O-])c(N2CCOCC2)c([N+](=O)[O-])c1OC
{#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#}
COc1cc([N+](=O)[O-])c(N2CCOCC2)c([N+](=O)[O-])c1OC
COc1cc([N+](=O)[O-])c(N2CCOCC2)c([N+](=O)[O-])c1OC
4-(3,4-dimethoxy-2,6-dinitrophenyl)morpholine