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. CC1Oc2ccccc2CC1N(C)C
b. CC1CC(=O)O1
c. COc1ccc2c(=O)c(C)c(C)oc2c1CN1CCOCC1
d. O=C1CCc2cc(C(=O)CCCN3CC=C(c4ccc(Cl)cc4)CC3)ccc2N1
e. CC(=O)OC1CCC(C(C)(C)C)CC1
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}