Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a CCOC=CC(OCC)OCC
b CCOP(=O)(OCC)SCC(=O)NC(C)(C)C#N
c CCCCCCCCCCCCNC(N)=S
d C=CN(CC)N=O
e CCCCN1CCCC1=Nc1ccc(Cl)c(Cl)c1
Answer: e
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}