Read the following context and choose the best option to answer the question.
Context: So you want to master Photoshop huh ? You ' ve come to the right place . This is the third and final installment of a three part series that will help you to master Photoshop in and out in just one week . Today 's part showcases advanced tutorials that will really push the skills you learned in part 1 and part 2 .
Question: What is the reason of the post ?
Options: 
A. None of the above choices .
B. To give a user review
C. To ask for tech support
D. To give tutorials


D