Task: Answer the multiple choice question.
Query: Which compound exhibits a 4.216\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc(CC(=O)N2CCN(c3ccccc3OC)CC2)cc1
b. c1ccn2cc(-c3ccc4c(c3)OCCO4)nc2c1
Answer: b. c1ccn2cc(-c3ccc4c(c3)OCCO4)nc2c1
{#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#}
c1ccn2cc(-c3ccc4c(c3)OCCO4)nc2c1
c1ccn2cc(-c3ccc4c(c3)OCCO4)nc2c1
2-(2,3-dihydro-1,4-benzodioxin-6-yl)imidazo[1,2-a]pyridine