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 other words.
Options:
a C#CCOS(=O)OC(CC)COc1ccc(C(C)(C)CC)cc1
b O=[N+]([O-])c1ccc(C=Cc2cccc(CO)n2)o1
c Cc1ccccc1N=C=O
d Cc1ccc2[nH]nnc2c1
e O=[N+]([O-])c1ccc(Oc2c(Cl)cc(Cl)cc2Cl)cc1
Answer: e
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}