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 CCOP(=S)(OCC(C)C)Oc1cnn(C)c(=O)c1OC
b O=C(O)c1ccccc1C(=O)c1ccccc1
c CC(Oc1ccc(Cl)cc1Cl)C(=O)O
d CCCCCOC(CBr)c1ccc(C(C)C)cc1
e NS(=O)(=O)c1cc(Cl)c(Cl)c(S(N)(=O)=O)c1
Answer: b
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}