Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: COc1cc2c(cc1OC)C(C)N(C(=O)C1=NN(c3cccc(C)c3)C(=O)CC1)CC2
b: COC(=O)c1c(C(=O)OC)c(-c2ccc(C)cc2)n2c1CS(=O)C2
c: COc1ccc(Cn2c(CCC(=O)Nc3ccc(C)c(C)c3)nc3cccnc32)cc1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}