Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a CCC1(O)CN2CCC1CC2C(O)c1ccnc2ccc(OC)cc12
b CC(C)(C)c1cc(Br)c2nc(C(F)(F)F)[nH]c2c1
c CC(C)OP(=S)(OC(C)C)SCSC(C)C
d CCOC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1c1cccc([N+](=O)[O-])c1
e COP(=O)(OC)OC(C)=CC(=O)N(C)C
Answer: e
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}