Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 1.965\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=P(c1ccccc1)(c1ccccc1)C1CCCO1
b: CCN(CC)CCn1c2ccccc2c2nc3ccccc3nc21
Answer: a. O=P(c1ccccc1)(c1ccccc1)C1CCCO1
{#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#}
O=P(c1ccccc1)(c1ccccc1)C1CCCO1
O=P(c1ccccc1)(c1ccccc1)C1CCCO1
2-diphenylphosphoryloxolane