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, c, or d without using any other words.
Options:
a: OCc1cc(C(O)CNCCCCCCOCCCCc2ccccc2)ccc1O
b: O=C(O)/C=C/c1cn(-c2ccccc2)nc1-c1ccc(-c2ccc([N+](=O)[O-])cc2)o1
c: Cc1ccc(S(=O)(=O)NCc2ccccc2C)cc1
d: Cc1cccc(NC(=O)c2ccc(S(=O)(=O)N3CCCCCC3)cc2)n1
Answer: a
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}