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)c1ccccc1O
b: CC(C)N(C(=O)CCl)c1ccccc1
c: CCOP(=S)(OCC)SCn1nc(Br)ccc1=O
d: COc1cc(C#N)ccc1OP(=S)(OC)OC
e: NCCNCc1ccccc1O
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}