Name five schools that offer online courses.
1. Harvard University
2. Stanford University 
3. Massachusetts Institute of Technology (MIT) 
4. University of Pennsylvania 
5. Berkeley University of California.
Complete the following task based on the instruction and optional input provided.### Instruction:
Name five schools that offer online courses.

### Output:
1. Harvard University
2. Stanford University 
3. Massachusetts Institute of Technology (MIT) 
4. University of Pennsylvania 
5. Berkeley University of California.