Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) O=C(c1ccc(-c2ccccc2)cc1)N1CCC(C(=O)N2CCCC2)CC1
(b) CCCC(CCC(=O)Nc1cc([N+](=O)[O-])ccc1O)C(=O)O
(c) CCCCCn1c(CN2CCN(Cc3ccccc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
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}