Problem statement: Answer the MCQ question.
Question: Which drug has a -2.656\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a On1nnc2c3ccccc3c3ccccc3c21
b Cc1ccc2c(c1C)OC(=O)CC2(C)C
c OCCN1CCN(c2nnc(-c3ccccc3)c3ccccc23)CC1
Answer: c. OCCN1CCN(c2nnc(-c3ccccc3)c3ccccc23)CC1
{#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#}
OCCN1CCN(c2nnc(-c3ccccc3)c3ccccc23)CC1
OCCN1CCN(c2nnc(-c3ccccc3)c3ccccc23)CC1
2-[4-(1-phenylbenzo[d]pyridazin-4-yl)piperazin-1-yl]ethanol