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) Oc1c(Br)cc(Br)cc1Br
b) CCCOP(=S)(OCC(C)C)Oc1cnn(C)c(=O)c1OC
c) CC(O)CNC(C)(C)Cc1ccc(Cl)cc1
d) CCC(C)=C1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
e) CCOP(=O)(OCC)OC(C)=CC(=O)OC(C)c1ccccc1
Answer: c
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}