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, c, or d without using any other words.
Options:
a. CCOC(=O)Nc1ccc2c(c1)ncn2C1CCCCC1
b. Cc1cc(C)nc(NC(=O)Cc2ccc([N+](=O)[O-])cc2)c1
c. COC(=O)/C(NC(C)=O)=C(\C)c1ccc(Cl)cc1
d. CCOC(=O)c1ccccc1NC(=O)COc1ccccc1
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}