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. CCN(CC)C(=O)c1ccccc1OCCO
b. Cc1ccc(N)cc1Br
c. CCCCCCCCCCCCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
d. Cc1cc(O)c(C(C)(C)C)cc1C
e. CCC(C)(C)C1CCC(C2=C(O)C(=O)c3ccccc3C2=O)CC1
Answer: b
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}