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 additional words.
Options:
a. CCCCC(CC)CO[Si](OCC(CC)CC)(OCC(CC)CC)OCC(CC)CCCC
b. CCOC(=S)SSSSC(=S)OCC
c. CC(C)CCCCCN(CCCCCC(C)C)CCCCCC(C)C
d. N#CCCOCCOCCO
e. OC1C=CCC1
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}