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 other words.
Options:
a CCCCC(=O)NC1=C(C(=O)OC)SCC1
b COc1ccc(NC(=O)COC(=O)c2ncc(Cl)c(Cl)c2Cl)c(OC)c1
c Cc1ccc(NC(=O)Cc2n[nH]c(=O)c3ccccc23)cc1S(=O)(=O)N1CCCCCC1
d CCOc1ccc(C(=O)NCC(=O)NNC(=O)C2COc3ccccc3O2)cc1OCC
Answer: c
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}