Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) CN(C)CCOCCN(C)C
b.) O=C(c1ccc(Cl)cc1)c1ccccc1-c1ncc[nH]1
c.) O=S(=O)(c1ccc(O)cc1)c1ccc(O)cc1
d.) C=CC(=C)CCCC(C)(C)O
e.) C=CC(=O)OCCOCCCC
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}