Task: Answer the MCQ question.
Question: Which compound exhibits a 11.157\% 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.) C1=CC2C3C=CC(C3)C2C1
b.) COc1cccc(-c2nnc3n2N=C(c2cc(OC)ccc2OC)CS3)c1
Answer: a. C1=CC2C3C=CC(C3)C2C1
{#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#}
C1=CC2C3C=CC(C3)C2C1
C1=CC2C3C=CC(C3)C2C1
tricyclo[5.2.1.02,6]deca-3,8-diene