Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
[a] Cc1ccc(S(=O)(=O)C=CC#N)cc1
[b] CCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
[c] NCC(CC(=O)O)c1ccc(Cl)cc1
[d] CNC(=O)Oc1cccc2ccccc12
[e] CNC(=O)N(C)c1nnc(C(C)(C)C)s1
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}