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) N#CCCSCCC#N
(b) CC(Cl)(Cl)C(=O)O
(c) Cc1cccc(N2CCN(CC=Cc3ccc4c(c3)CCC(=O)N4)CC2)c1
(d) C=COCCOCCOCC(=O)OC
(e) C=CC(C)CCCC(C)(C)O
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}