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, or c without using any other words.
Options:
a: CCCCCCCCC(=O)NCc1ccc(C[C@@H](O)CO)c(OC)c1
b: CC(C)(C)NC[C@H](O)c1cc(Cl)c(N)c(Cl)c1
c: CC[NH+](CC)CCNC(=O)c1ccc(NS(C)(=O)=O)cc1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}