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, d, or e without using any additional words.
Options:
(a) CCCCC=C1CCCCC1=O
(b) COP(=O)(SC)SC
(c) COc1cc2c(cc1OC)C(c1ccc(N)cc1)=NN=C(C)C2
(d) CNC(=O)ON=C(CS(C)(=O)=O)C(C)(C)C
(e) C=C(C)C(=O)OCCC[Si](OC)(OC)OC
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}