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) CCCCNCC
b) CC(=C1CCOC(=O)S1)N(C=O)Cc1cnc(C)nc1N
c) CC(CCN(C)C)N(C)C
d) CCCCC(CC)COC(CBr)c1ccc(C2CCCC2)cc1
e) Nc1nc2cc(Cl)ccc2o1
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}