Answer:
A is the true statement
Explanation:
A- Passive margins are the contacts between plates.
B- I think tectonic plates can consist of oceanic and continental crust.
C- Plates do shift continents as they move, it is constantly changing but quite slowly and it can take a lot of years (decades, centuries and so on). It only shifts continents further/closer about 0.6 inch a year.
D- There are 7 major tectonic plates-
and there are are only 8 minor tectonic plates