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] Cn1c(=O)[nH]c(=O)c2c1nc1n2CCN1Cc1ccccc1
[b] CC(=O)CCC(=O)c1ccc2ccccc2c1
[c] O=C(Nc1nc(-c2ccc(S(=O)(=O)N3CCCC3)cc2)cs1)c1cccs1
[d] CCCC(=O)N1CCN(c2ccc([N+](=O)[O-])cc2Cl)CC1
Answer: d
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}