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. CC(Sc1nnc(COc2ccc([N+](=O)[O-])cc2)n1-c1ccccc1)C(=O)O
b. CSCc1ccc(C(=O)N2CCC(CCC(=O)N(C)Cc3ccccc3)CC2)o1
c. Cc1cc(C2C(C#N)=C(N)OC3=C2C(=O)CCC3)c(C)s1
d. O=C(Nc1ccccc1F)NC1CCCc2ccccc21
Answer: b
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}