Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a.) COc1ccc(C(=O)c2cn[nH]c2-c2cc(Cl)ccc2O)cc1
b.) CCOc1ccc(CCNC(=O)COC(=O)c2cccc(S(=O)(=O)N3CCCC3)c2)cc1OCC
c.) Nc1nnc(-c2cccc([N+](=O)[O-])c2)o1
d.) CCN(CC)CCCCN1c2ccccc2Sc2ccccc21.Cl
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}