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 other words.
Options:
a: Cc1csc(SCC(=O)NC(C)c2ccccc2)n1
b: COc1ccc(C)cc1NC(=O)C(c1ccccc1)N1CCNC(=O)C1
c: CC1=C(C)CC(C(=O)NNC(=O)c2cccc(Cl)c2)C(C(=O)O)C1
d: O=C(NC1CN2CCC1CC2)c1ccc(-c2ccc([N+](=O)[O-])cc2)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}