___developed the first compiler and conducted work that led to the development of COBOL. A. Grace Hopper
B. William Shockley
C. Charles Babbage
D. Bill Gates

Go to settings and or ask google

Answer domain name system (dns);

The development plan is the way that the company grows and the levels the employee goes up. if the plan is public to many people using an ebi server than it will rank up the employee. this being said a would be the best answer. 

Each mile is 1.60934 kilometer,so 10 miles are 1.60934x10=16.0934 kilometers;