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, or d without using any other words.
Options:
(a) C=CCc1ccccc1
(b) CC(C)c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O
(c) Cc1ccc(N)cc1[N+](=O)[O-]
(d) CS(=O)(=O)c1ccc(C(O)C(CO)NC(=O)C(Cl)Cl)cc1
Answer: d
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}