Depending on what kind of security measures are implemented, D would definitely be a contender. However, B is also something to take into consideration. I would answer D.<span />
        
                    
             
        
        
        
If you don’t mind can u add the picture it helps me Answer the question better
        
             
        
        
        
Answer:
1.) 25 ; 15 ; 15
2.) 50 ; 15 ; 50
Explanation:
In the first function written :
The variable val was initially decaled or assigned a value of 25 and that was what was printed first.
However, after the example function was written, the val variable was finally assiagned a value of 15 within the function. However, it was also declared that the global variable takes uonthe val value. Hence, the val variable initially assigned a value, of 25 changes to 15 globally.
For the second code :
From the top:
Val was assigned a value of 50 ;
Hence, 
print(val) gives an output of 50
 
Within the function definition which prints the value of val that is assigned a value of 25 within the function. 
Since tbe global variable isnt reset. 
Printing Val again outputs 50;since ito is outside the function.
 
        
             
        
        
        
If you want to set the sticky bit on an existing directory, subdir, without otherwise altering its permissions. to do so, you should type chmod a <u>t  <subdir>.</u>
<h3>What is 
Subdir?</h3>
The Definition of the term subdirectory is known to be a kind of an organizational directory that can be seen on a computer.
It is known to be one that can be found inside another directory  such as a subfolder. It is seen as the file a person is looking for and it is one that needs to have an extension.
Therefore, if you want to set the sticky bit on an existing directory, subdir, without otherwise altering its permissions. to do so, you should type chmod a <u>t  <subdir>.</u>
Learn more about directory from
brainly.com/question/14845522
#SPJ1 
See full question below
You want to set the sticky bit on an existing directory, subdir, without otherwise altering its permissions. To do so, you should type:
chmod a+_____ <subdir>
- s
- p
- b
- t