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. CCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
b. CNC(=O)Oc1ccc(NC(=O)C(F)(F)Cl)c(C)c1
c. COP(=O)(OC)Oc1ccc(S(C)(=O)=O)c(C)c1
d. COC(=O)c1ccc(C)cc1
e. c1ccc(P(N=P(c2ccccc2)(c2ccccc2)c2ccccc2)c2ccccc2)cc1
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}