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. O=C(O)Cc1ccccc1Nc1c(Cl)cccc1Cl
b. C=CC(=O)OCCOCCCC
c. COP(=S)(OC)SCC(=O)O
d. CCCCN(CC)C(=O)SCCC
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}