Industry experts estimate about what percentage of communication is through body language?
80%
100%
45%
20%

The percentage of communication through body language is 55%.

Explanation:

Non-verbal communication always attracts more than a verbal communication. Even to a news reader, the eye expression, the shake of head, the movement of lips and in entire the whole facial expression is more important and it should always coincide with the message conveyed verbally to have a great impact.

When an expert speaks in a public meet, the body language is the first which attracts. On an average the words that are spoken is given a weight-age of 7% and 93% to the listeners and all the other aspects belonging to the body language of the presenter.

system programmer option d is correct

because an operating system is software that manages computer hardware and system resources.