Their members become more privatized and less incorporated into the wider community. As competition and consumerism become more widespread, the traditional household, especially in its extended forms as institutions of micro-hierarchy, become eroded.
C. They are based on evidences obtained from investigation
The rivers start from the mountains or hills.
The correct answer is Sea of Japan - answer b) is the correct one!
This sea borders Japan, South and North Koreas, China and Russia.
This sea is named after Japan in most languages, not only in English.
South to it is the East China Sea, which separates China from Taiwan.