Q:

Storyboard and iPhone 6 landscape only

Suppose if we are designing storyboard to support iPhone6 Plus in landscape only orientation, which one of the below vertical and horizontal size class combination 
we choose and why
a. Regular Vertical and Compact Horizontal size class
b. Regular Vertical and Regular Horizontal size class
c. Compact Vertical and Regular Horizontal size class
d. Compact Vertical and Compact Horizontal size class

A:

For iphone6 plus landscape, Regular Width(Horizontal) and Compact Height(Vertical).
Thanks

