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, or d without using any additional words.
Options:
a.) COc1ccc(Nc2ccc(OC)cc2)cc1
b.) CCCCCCCCCCCCCCCCCC(=O)OCCCC
c.) O=C1CN=C(c2ccccc2F)c2cc(Cl)ccc2N1CC1CC1
d.) NCCCNCCCN
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}