Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a. CCOC(=O)CN(C)N=O
b. N#CSC=CSC#N
c. CNC(=O)ON=C(C)SCC(=O)N1CCCC1
d. CCCCCCCCOC(=O)C1=C(C)NC(C)=C(C(=O)NC2CC2)C1c1ccccc1[N+](=O)[O-]
e. CCCCC(CC)COCC(CC)CCCC
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}