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. COP(=O)(OC)Oc1ccc(S(C)(=O)=O)c(C)c1
b. COP(=S)(OC)SCSc1ccccc1
c. CC=Cc1ccc(OCC)c(O)c1
d. O=C(O)Cc1cc(I)c(Oc2cc(I)c(O)c(I)c2)c(I)c1
e. Cc1c(Cl)cccc1CC(Cl)C#N
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}