Assume that a file named record.txt contains a single dictionary object whose keys represent the names of students in CSC$130$ and the corresponding values are the the scores of students. This dictionary object has been serialized earlier to the file. Complete the following code that will

define a function that will load the dictionary object from the file and return the dictionary object.

define a function that accepts a dictionary object as an argument, removes every student whose score is zero from the dictionary object and returns the updated dictionary object.

define a function that accepts a dictionary object as an argument, calculates and displays the average score as a whole number.

import pickle as pk

def getDict$()$:

fObj$=$ oper

def removeZeros$($dObj$)$:

new$\_$dObj $=\{\}$

for k$,$ v in $.$items $()$:

if $v0$ :

return

def avg$\_$score$($dObj$)$:

total$\_$score $=0$

for $k$ in dObj: