Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (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) CCN(CC)CCOCc1cc(Br)cc(Br)c1OC
b) CCS(=O)Cc1ccccc1OC(=O)NC
c) CCP(=S)(OC)Oc1ccc([N+](=O)[O-])cc1Cl
d) O=CNc1ccc(Br)cc1
e) COP(=S)(OC)Oc1ccc(C#N)cc1Cl
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}