Task: Answer the multiple-choice question.
Query: Which drug exhibits a 26.521\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a N#CCSc1nc2c(cc1C#N)CCCC2
b CNc1ccc(Cl)cc1C(N)=O
c CCOC(=O)C1CCCN(C(=O)c2ccc([N+](=O)[O-])c(C)c2)C1
d COc1ccc(S(=O)(=O)Nc2nc3ccccc3nc2NCc2ccc3c(c2)OCO3)cc1
Answer: b. CNc1ccc(Cl)cc1C(N)=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#}
CNc1ccc(Cl)cc1C(N)=O
CNc1ccc(Cl)cc1C(N)=O
[C][N][C][=C][C][=C][Branch1][C][Cl][C][=C][Ring1][#Branch1][C][Branch1][C][N][=O]
5-chloro-2-(methylamino)benzamide