Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a. O=C1C2CC=CCC2C(=O)N1SC(Cl)(Cl)Cl
b. Clc1ccc(Cc2ccc(Cl)cc2)cc1
c. CCn1c(=O)c2ccccc2n(-c2cccc(C(F)(F)F)c2)c1=O
d. Nc1c(Cl)cc(C(=O)NC2CC2)cc1Cl
e. O=C1CCC(C(=O)NC2CC2c2ccccc2)N1
Answer: e
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}