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. CN(C)CCCn1c2c(c3ccccc31)CCCCCC2
b. CCOP(=O)(N=C1SCC(C)S1)OCC
c. COC(=O)C1CCc2cc(C3CCCCC3)ccc21
d. CC(=O)Nc1ccc(S(=O)(=O)Nc2cc(C)on2)cc1
e. CCc1ccc(C)[n+]([O-])c1
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}