That means the device is programmed to mark the word as grammatically incorrect, if you double tap the word there should be a correct suggestion of the word instead. This may not always be the right one tho, ask someone experienced if you’re unsure.
        
             
        
        
        
Answer
The answer and procedures of the exercise are attached in the following archives.
Step-by-step explanation:
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  
 
        
             
        
        
        
The answer to this is 'for'
        
             
        
        
        
Answer:
user_name = input("input user name: ")
print(len(user_name))
Explanation:
input - input function in python
len - length of value 
print - print data
 
        
             
        
        
        
My guess is d but I’m not positive