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) NC(C(=O)O)c1cc(=O)[nH]o1
(b) CCOC(=O)C(C)(C)N=NC(C)(C)C(=O)OCC
(c) C=CCOC(=O)CCCCCCCC1OC1CCCCCCCC
(d) CC(=O)OCCSCCOC(C)=O
(e) C=CCSC1=NCCS1
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}