Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a: COC(=O)CC(SP(=S)(OC)OC)C(=O)OC
b: CCOP(=S)(Oc1cnn(-c2ccccc2)c(=O)c1OC)OC(C)C
c: COc1cc(C(=O)N(C)C)nn1-c1cccc(Cl)c1
d: CCn1cc(C(=O)O)c(=O)c2ccc(C)nc21
e: O=[N+]([O-])c1cccc2[nH]c(C(F)(F)F)nc12
Answer: d
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}