What are the most popular/up-and-coming social media applications?

Selling a product through an electronic medium is

Who can provide you with a new password when you have forgotten your old one? your provide you with a new password in case you forget your old one.

Barbara is interested in pursuing a career in the science and math pathway. which qualifications will her reach that goal? a.an advanced knowledge of physics and math b.an advanced knowledge of engineering and math c. an advanced knowledge of physics and robotics an d. advanced knowledge of machinery and math