Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a. CCC(Cl)(CC)C(=O)OCC(Cl)(Cl)Cl
b. ON=CC(O)(C#Cc1ccccc1)c1ccccc1
c. NCC1CCC(C(=O)O)CC1
d. FC(F)(F)c1nc2c(Cl)cccc2[nH]1
Answer: d
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}