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) CCOc1ccc(NC(=O)c2ccccc2NC(=O)CN2CCN(C(C)=O)CC2)cc1
(b) O=[N+]([O-])c1ccc2c(c1)C(c1ccccc1)=NCCN2
(c) COc1cccc(/C=C2\SC(=O)N(CCC(=O)NNC(=O)c3cccc(Cl)c3)C2=O)c1
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}