Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 1.858\% human ether-à-go-go related gene (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 other words.
Options:
a COC(=O)c1ccc(Cn2cnc3c(cnn3-c3ccc(C)c(C)c3)c2=O)o1
b N#C/C(=N\Nc1ccccc1)C(=N)N1CCCCCC1
c O=C(Nc1ccc(N2CCOCC2)cc1)c1cc(-c2ccncc2)nc2ccccc12
d Cc1c(C(=O)c2ccc(Cl)cc2[N+](=O)[O-])c2ccccn2c1CCC#N
Answer: d. Cc1c(C(=O)c2ccc(Cl)cc2[N+](=O)[O-])c2ccccn2c1CCC#N
{#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#}
Cc1c(C(=O)c2ccc(Cl)cc2[N+](=O)[O-])c2ccccn2c1CCC#N
Cc1c(C(=O)c2ccc(Cl)cc2[N+](=O)[O-])c2ccccn2c1CCC#N
3-[1-(4-chloro-2-nitrobenzoyl)-2-methylindolizin-3-yl]propanenitrile