Assume that the variable data refers to the dictionary {'b':20, 'a':35} . Write the expressions that perform the following tasks: a. Replace the value at the key 'b' in data with that value's...

Assume that the variable
data
refers to the dictionary
{'b':20, 'a':35}. Write the expressions that perform the following tasks:

a. Replace the value at the key
'b'
in
data
with that value's negation.



b. Add the key/value pair
'c':40
to
data.


c. Remove the value at key
'b'
in
data, safely.



d. Print the keys in
data
in alphabetical order.