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 other words.
Options:
a. CCC(C)c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1OC(=O)OC(C)C
b. CCN1CCCC1CNC(=O)c1cc(Cl)cc(Cl)c1OCc1ccccc1
c. CCN(CC)CCNc1c(Cl)cc(C)c2ncccc12
d. Cc1ccc(N)c(C)c1
e. O=C(O)c1cccc(Oc2ccc(C(F)(F)F)cc2Cl)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}