Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) CCN(CC)C(=S)Sc1nc2ccccc2s1
(b) CCOP(=S)(OCC)SCCl
(c) C=CC(C)NC(=S)NNC(=S)NC
(d) COCCC(C)OC
(e) O=[N+]([O-])c1ccc(C=NNC(=S)N2CCCC2)o1
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}