Task: Answer the multiple choice question.
Question: Which drug exhibits a -16.570\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Cc1nc2ccc(-c3ccccc3)cc2o1
(b) CCCc1cc(=O)oc2cc(OS(C)(=O)=O)ccc12
Answer: a. Cc1nc2ccc(-c3ccccc3)cc2o1
{#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#}
Cc1nc2ccc(-c3ccccc3)cc2o1
Cc1nc2ccc(-c3ccccc3)cc2o1
2-methyl-6-phenyl-1,3-benzoxazole