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 additional words.
Options:
a CCn1c(=O)c2ccccc2n(-c2cccc(C(F)(F)F)c2)c1=O
b Cc1ccccc1-n1c(CF)nc2ccc(N)cc2c1=O
c CCc1cc2c(cc1C=O)C(C)(C)CCC2(C)C
d ClC1CC(Cl)C(Cl)C1Cl
e CCCCCc1cc(O)c2c(c1)OC(C)(C)C1CC=C(C)CC21
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}