Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
(a) CC(CO[N+](=O)[O-])O[N+](=O)[O-]
(b) CC(C#N)CCC#N
(c) Cc1noc(NS(=O)(=O)c2ccc(N)cc2)c1C
(d) CNC(=O)C(Cl)=C(C)OP(=O)(OC)OC
Answer: d
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}