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] O=C(C[n+]1cccc(CNC(=O)c2ccc(OC(F)F)cc2)c1)Nc1ccccc1Cl.[Cl-]
[b] CCOC(=O)C1C(=O)CC(C)(O)C(C(=O)OCC)C1c1ccc(Br)cc1
[c] CCCCCn1c(=O)c(C(=O)OCC)c(Cl)c2ccccc21
[d] COc1ccccc1N1CCNC(C)C1=O.Cl
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}