Task: Answer the MCQ question.
Question: Which compound has a 4.681\% 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. Cc1nnc(NC(=O)c2oc3ccccc3c2C)s1
b. CCN(CC)c1ccc2c(C)c(Cl)c(=O)oc2c1
c. Cc1cc(Oc2ccc(-c3ccccc3)cc2)nc(N2CCOCC2)n1
Answer: b. CCN(CC)c1ccc2c(C)c(Cl)c(=O)oc2c1
{#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#}
CCN(CC)c1ccc2c(C)c(Cl)c(=O)oc2c1
CCN(CC)c1ccc2c(C)c(Cl)c(=O)oc2c1
3-chloro-7-(diethylamino)-4-methylchromen-2-one