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, d, or e without using any additional words.
Options:
a. CCOP(=O)(CC)Sc1ccc(Cl)cc1
b. CCC(C)(O)c1ccccc1
c. COc1cc([N+](=O)[O-])ccc1N
d. COC(=O)c1ccc(C)cc1
e. COc1ccc(O)c(C(N)=O)c1
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}