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: N#CSc1ccc(N)cc1
b: CC(=O)Nc1ccccc1
c: COc1cc(OC)cc(OCC(O)CO)c1
d: CCOP(=S)(OCC)OC(=CCl)c1ccc(Cl)cc1Cl
e: CC(C)(O)CCc1ccccc1
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}