Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 0.646\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] C/C(=N\NC(=O)C(=O)Nc1cccc(Cl)c1)c1ccncc1
[b] Cc1cn[nH]c1.Cl
[c] COc1ccc(S(=O)(=O)Nc2ccccn2)cc1
Answer: b. Cc1cn[nH]c1.Cl
{#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#}
Cc1cn[nH]c1.Cl
Cc1cn[nH]c1.Cl
4-methyl-1H-pyrazole;hydrochloride