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 Cc1ccc2nc3sc(=O)sc3nc2c1
b O=C=Nc1ccc(Cc2ccc(N=C=O)cc2)cc1
c CCC(CO)NC(=O)C1C=C2c3cccc4[nH]cc(c34)CC2N(C)C1
d CC(C)OC(=O)C(O)(c1ccc(Br)cc1)c1ccc(Br)cc1
e CCC1OC(=O)C(C)C(OC2CC(C)(OC)C(O)C(C)O2)C(C)C(OC2OC(C)CC(N(C)C)C2O)C(C)(O)CC(C)C(=NOCOCCOC)C(C)C(O)C1(C)O
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}