How are long-arm statutes and forum-selection clauses similar?

How are long-arm statutes and forum-selection clauses similar? 

a. They both eliminate the necessity

for a court to have subject matter jurisdiction.  b. They both eliminate any requirement that there be a connection between a state and a       party over whom that state is attempting to exercise jurisdiction.  c. They both can be factors in determining whether or not a state has personal jurisdiction      over a defendant.  d. They both eliminate the need to meet venue requirements in a case.