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) CCC1(NC(N)=O)CCCC1
(b) CCN1CN1CC
(c) O=C1CCc2cc(CCCN3CCN(c4ccccc4)CC3)ccc2N1
(d) O=C1CCCC(=O)O1
(e) CNC(=O)ON=C1SCCS1
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}