How do I reveal the "Diffuse and Transparency" option in Cycles Render for Import as plane (png)? Currently I can only see the diffuse and emission options. However, on tutorials such as the screenshotted one, it requires that I have other options available. I added the same addons as in the tutorial, and yes, I am in the cycles render engine. 




Here is my screen, currently.


Thank you for all the helps.
Those options are gone.

The way to do transparency is to enable Use Alpha



And then choose between diffuse and emission as the shader.