I agree with option A or B, but there is no option C level available. San Antonio would laugh at #4 and Parsons for Kawhi. I don't think Cleveland would take Parsons and #4 for Love. I think the "best" player Memphis could get with #4 and Parsons is maybe Wiggins.
#4 could get a whole bunch. Parsons is a massive anchor to #4. His contract turns #4 into a late lottery pick at best.
Yeah that's why I don't think C will happen. I think their best chance to dump Parsons will be if the Mavs really want Doncic.
Maybe something like...
Mavs get- #4 (Doncic) and Parsons
Grizzlies get- #5 and Wes Matthews
Mavs take a bigger contract with one extra year on it in order to get Doncic.
Grizzlies shed some salary, get a player who could help a little next year and stay in the top 5.