Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a CCOc1ccc([N+](=O)[O-])cc1CNCCBr
b CCN(CCO)c1cccc(C)c1
c O=CC=Cc1ccccc1
d Cc1ccc(S(=O)(=O)NN)cc1
e Clc1ccc(C(Cl)(Cl)Cl)c(Cl)c1
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}