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) O=C1C(=C(Cl)Cl)C(=O)C2(Cl)C3C=CC(C3)C12Cl
b) NC(Cc1ccc(O)c(O)c1)C(=O)O
c) O=C(c1ccccc1)C(O)c1ccccc1
d) CCCCOC(=O)COC(=O)c1ccccc1C(=O)OCCCC
e) CC=CC(=O)N(CC)c1ccccc1C
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}