Answer:
See explaination 
Explanation:
def readFileFirstLast(filename):
 # doc string
 ''' Function accept the filename and opens the fle
 and reads all lines and strips new line character and
 stores first and last in a string and return that string'''
 #eception handle if file not found
 try:
 #opening the file
 f = open(filename)
 #reading the first line and striping the ne line
 string = f.readline().strip()
 #iterating until last line
 for line in f:
 pass
 #concate the last line after strip the new line character to the string
 string = string + " " + line.strip()
 #return the string
 return string
 except:
 #if file not found
 return "File not found"
#taking the file name from user
filename = input("Enter a file name: ")
#printing the doc string in function
print("\ndoc_sting: \n"+ readFileFirstLast.__doc__+"\n")
#printing the returned string by calling the readFileFirstLast()
print("output string :")
print(readFileFirstLast(filename))
 
        
             
        
        
        
B. Summer monsoons bring heavy rainfall and winter monsoons create dry and arid conditions.
        
             
        
        
        
The answer to this question is protocol
 
        
                    
             
        
        
        
Answer:
how data will flow through the program
Explanation:
says the answer in the question
 
        
             
        
        
        
I think that the answer is packets.