Exceptions - General Questions

What is the output of the following code?

try:
    1 / 0
except ZeroDivisionError:
    print('zero')

Which keyword raises an exception?

Which is the base class of most built-in exceptions?

Which statement is used to raise an exception manually?

What is the output of the following code?

d = {}
try:
    d['k']
except KeyError as e:
    print(type(e).__name__)