Read the following context and choose the best option to answer the question.
Context: Good , good , good . Also , I owe you a garden post , but today is not the day for that . I thought the garden had failed me , but it turns out I just failed to plan .
Question: Why is the speaker reminding the subject that they owe them a garden post ?
Options: 
A. None of the above choices .
B. They have been overwhelmed with guilt for not replacing it sooner and are trying to express this
C. They are trying to be manipulative and gain the upper hand by feigning duty to the subject
D. They strive to the right thing whenever they possibly can and are making note of this


D