Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a. CC[Si]1(CC)N[Si](CC)(CC)N[Si](CC)(CC)N1
b. O=S(=O)(F)C1CCC(S(=O)(=O)F)C1
c. NC(=O)C(O)(c1ccccc1)c1ccccc1
d. CNc1nc(NC(C)C)nc(SC)n1
e. Cc1cncc(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}