Task: Answer the MCQ question.
Question: Which drug exhibits a 18.618\% 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. CCSc1nnc(C)c2ccccc12
b. CNC(=S)NNC(=O)COc1cccc(C)c1C
c. O=C(Nc1nc(-c2ccccn2)cs1)c1cccc(S(=O)(=O)N2CCOCC2)c1
Answer: a. CCSc1nnc(C)c2ccccc12
{#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#}
CCSc1nnc(C)c2ccccc12
CCSc1nnc(C)c2ccccc12
1-ethylsulfanyl-4-methylphthalazine