I think you mean the Umayyad Caliphate and your question is from which country to which country this empire streched at the time (correct me if I'm wrong!)
So, their conquest of Spain hasn't started till 711 on the West, their land streched to today's Morocco.
In the east, they have reached the north of India, what is today mostly in Pakistan.
<span>(B) is the most correct answer. Social Security becomes the main way a person earns income after they reach the age of at least 62. This way, a person who has retired from the workforce can still draw an income and be able to live comfortably without having to worry about having a retirement plan in place.</span>
Skilled manpower is essential to carry out several development activities. To carry out several development works may be difficult in the absence of skilled manpower. They also play vital way for the systematic utilization of the natural resources and help to conserve them as well. A skilled manpower can produce a more manpower because one skilled man or person is equal to hundreds of unskilled persons. skilled manpower knows more things or ways to do his work in a proper way. So, if there is any problem then a skilled man is better than unskilled man.