Task: Answer the multiple choice question.
Question: Which drug exhibits a 20.359% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CSc1nc(Oc2ccc3ccccc3c2)c2ccccc2n1
(b) CCCSc1nc(O)c(C2OC(=O)c3c2ccc(OC)c3OC)c(=O)n1-c1ccccc1
Answer: a. CSc1nc(Oc2ccc3ccccc3c2)c2ccccc2n1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CSc1nc(Oc2ccc3ccccc3c2)c2ccccc2n1
CSc1nc(Oc2ccc3ccccc3c2)c2ccccc2n1
2-methylsulfanyl-4-naphthalen-2-yloxyquinazoline