Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CCNC(=O)CC(C)=O
b. CC1NC(=O)c2cc(N)ccc2O1
c. CCSC(=O)N(CC)C1CCCCC1
d. CCCN(CCC)N=O
e. COc1ccc(Cc2cnc(N)nc2N)cc1OC
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}