Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a O=[N+]([O-])c1cc([N+](=O)[O-])c2nc(C(F)(F)F)[nH]c2c1
b ClCC1OC1CCl
c CC1CC(C)OP(=O)(Cl)O1
d CCC(CC(C)CC)=NO
e C=CC(O)CCCCC
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}