How to display only some terms of a specific vocabulary in Views
This can be achieve through View,


Create a view based on the Taxonomy (Strucutre->view->View settings)
Choose Page or Block View.
Select the desire fields in the field section
Add the taxonomy vocabulary ( categories) and Add term in Filter criteria, and select the Drop down, select the select the hirarchy. 


Then it will show the term what you want to filter, select the b,d,e terms over there

And then, b,d and e terms only will be shown in View.