Answer:
The function in Python is as follows:
def word_beginnings(line, ch):
 count = 0
 lines =line.split(" ")
 for word in lines:
 if word[0] == ch:
 count+=1
 return count
Step-by-step explanation:
This defines the function
def word_beginnings(line, ch):
This initializes count to 0
 count = 0
This splits line into several words
 lines =line.split(" ")
This iterates through each word
 for word in lines:
This checks if the first letter of each word is ch
 if word[0] == ch:
If yes, increment count by 1
 count+=1
Return count
 return count