Task: Answer the multiple-choice question.
Query: Which compound has a 20.796% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a Cl.c1cc2c(cc1C1CCCCC1)c1c3n2CCCNC3CCC1
b Nn1c(-c2cccs2)nc2sc3c(c2c1=O)CCCC3
c O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
d CC(C)Cn1c(N)c(C(=O)COC(=O)c2c(F)cccc2F)c(=O)n(C)c1=O
Answer: c. O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
N'-(2-chloro-5-nitrobenzoyl)thiophene-2-carbohydrazide