Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CN1C(=O)NC2(O)C(=O)c3ccccc3C12O
[b] CCN1CCCc2cc(CN(CCN3CCOCC3)C(=S)Nc3ccc(OC)c(OC)c3)ccc21
[c] CC(=O)Nc1ccc(CN2CCN(CCc3ccccc3)C(CCO)C2)cc1
Answer: c
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}