Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a NC(=O)c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1
b CCOC(=O)Cc1n[nH]c2ccc(Cl)cc12
c CCOC(=O)C(CC)(C(=O)NCCN(CC)CC)c1ccccc1
d CC(Oc1ccc(Oc2ccc(Cl)cc2)cc1)C(=O)O
e C=Cc1ccccc1
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}