(Unit1 Text B)"I first joined Twitter two years ago as a means of keeping in touch with my son."The word "means" has the similar meaning with the one in:
A.
Twitter, for me, had become much more than just a means of staying in touch.
B.
Managing well means communicating well.
C.
He says it and he means it.
D.
He was born on the mean streets of the central market.