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 other words.
Options:
a) CC(=O)OC=CCOC(C)=O
b) O=C1C=C2C(=CCOC2O)O1
c) CCCCN(C)N=O
d) C=CCC(CC=C)C(=O)O
e) CC1CCC2C(C)C(=O)OC3OC4(C)CCC1C32OO4
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}