Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CCOc1ncccc1C(=O)Nc1ccc(C)c(S(=O)(=O)N2CCCCCC2)c1
b: CCn1ncc(N2CCOCC2)c(Cl)c1=O
c: CN1CCN(S(=O)(=O)c2ccc(NC(=O)c3ccc([N+](=O)[O-])cc3)cc2)CC1
d: Cc1ccsc1-c1nc(CN2CCN(C)C(=O)[C@@H]2C)c(C)o1
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}