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 additional words.
Options:
[a] NS(=O)(=O)Cc1noc2ccccc12
[b] CCC1(C)Oc2cccc(OC(=O)NC)c2O1
[c] Cc1cccc(C)c1N(C(=O)CCl)C1CCOC1=O
[d] CCCCC(CC)CO
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}