Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CCOC(C1=NCC(C)(C)CN1)c1cccc(F)c1
b. CS(=O)(=O)Oc1ccc(Cl)cc1Cl
c. CC(C(=O)O)c1cccc(C(=O)c2ccccc2)c1
d. COc1ccc(N)c(S(=O)(=O)O)c1
e. CCOP(=S)(OCC)SC(C#N)c1ccccc1
Answer: b
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}