Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) CCCCNC(=O)OCC(C)(CCC)COC(N)=O
b.) CC(C)N(C(=O)SCC(Cl)=C(Cl)Cl)C(C)C
c.) N#CC(F)(F)C(F)(F)C(F)(F)C#N
d.) CCn1cc(C(=O)O)c(=O)c2ccc(C)nc21
e.) CCc1nc(N)nc(N)c1-c1ccc(Cl)cc1
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}