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 C=C[Si](OCCOC)(OCCOC)OCCOC
b CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC
c COc1ccc(OC)c(Cc2cnc3nc(N)nc(N)c3c2C)c1
d ClC1=C(Cl)C2(Cl)C3CC(Cl)(Cl)CC3C1(Cl)C2(Cl)Cl
e O=C(CCCN1CCN(c2ccccc2)CC1)c1ccc(F)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}