Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a.) CC(=O)NC(=O)c1ccccc1O
b.) O=C(O)Cc1ccccc1Oc1c(Cl)c(Cl)cc(Cl)c1Cl
c.) COC(C=Cc1ccccc1)OC
d.) C=C(C)C(=O)Nc1ccc(O)cc1
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}