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] CCc1cc2c(s1)-n1c(C)nnc1CN=C2c1ccccc1Cl
[b] CNC(=O)ON=C1SCCS1
[c] CCNc1nc(NC(C)(C)C)nc(SC)n1
[d] CC(C)Nc1nc(Cl)nc(NC(C)C)n1
[e] CC(C)OC(=O)C(O)(c1ccc(Br)cc1)c1ccc(Br)cc1
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}