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. O=C(C=Cc1ccccc1O)OC(=O)C=Cc1ccccc1O
b. Clc1ccc(C(c2ccc(Cl)cc2)C(Cl)(Cl)Cl)cc1
c. O=C(Cc1ccc2c(c1)OCc1ccccc1C2=O)OCC(O)CO
d. Cc1nc2n(c(=O)c1CCN1CCC(c3noc4cc(F)ccc34)CC1)CCCC2O
e. CC1(C)CC(NC2CC(C)(C)NC(C)(C)C2)CC(C)(C)N1
Answer: a
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}