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, d, or e without using any additional words.
Options:
a. Oc1c(Cl)c(Cl)c(Cl)c(Cl)c1Cl
b. CNC(=O)Oc1ccc(C)c(C)c1C
c. COc1ccc([N+](=O)[O-])cc1Cl
d. CNC(=N)NC(=O)Nc1c(C)cccc1C
e. COP(=S)(OC)Oc1ccc(S(C)=O)c(C)c1
Answer: a
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}