Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
(a) Nc1ccc(N)c([N+](=O)[O-])c1
(b) CNC(=O)Oc1ccc(NC(=O)C(F)(F)Cl)c(C)c1
(c) Cn1c(=N)oc2ccc(Cl)cc21
(d) NC(=O)NC(=O)Cc1ccccc1
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}