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) CC(C)CCP(=O)(CCC(C)C)CCC(C)C
b) CCN(N=O)C(N)=O
c) CCO[Si](C)(CCCCN)OCC
d) CN(Sc1ccc(F)cc1)C(=O)Oc1cccc2c1OC(C)(C)C2
e) CN1CCN(CC(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
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}