Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a. Cc1c(COC(=O)C2C(C=C(Cl)C(F)(F)F)C2(C)C)cccc1-c1ccccc1
b. C=C(C)C1CC=C(C)CC1
c. FC(F)(F)C(Cl)Br
d. CCCOP(=O)(CC)SCCC
e. C=CC1CN2CCC1CC2C(O)c1ccnc2ccc(OC)cc12
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}