Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
(a) COC(=O)NC(=S)Nc1ccccc1NC(=S)NC(=O)OC
(b) Cc1ccc(C(C)C=O)cc1
(c) CCOP(=S)(OCC)SCc1ccc([N+](=O)[O-])cc1
(d) NP(=S)(N1CC1)N1CC1
(e) N#Cc1c(Cl)c(Cl)c(Cl)c(C#N)c1Cl
Answer: c
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}