<span>B.) Ownership of land areas.<<
</span>
<span>C.) They've grown to become trees, plunging deep roots into earth<<<</span>
One may find it extremely difficult to come across a reliable vehicle that suits their needs.
or
One may find it extremely difficult to come across a reliable vehicle that fits their budget.
In opening a statement in an oral presentation you should always have a good introduction in going over the most important points that will be made
I think that "it" represents the plane...
