Which of the following sentences is the best one?
A、The science and technology have greatly influenced our lives and our society is changign very rapidly.
B、The science and technology have greatly influenced our lives and our society is changing at an unprecedented speed.
C、The science and technology have greatly influence our lives, as a result, our society is changing at an unprecedented speed.
D、The science and technology have penetrated every corner of our lives, as a result, our society is changing at an unprecedented speed.