Question: class X {} class Y {Y () {}} class Z {Z(int i) {} } Which class has a default constructor? a. X only b. Y

class X {}

class Y {Y () {}}

class Z {Z(int i) {} }

Which class has a default constructor?

a. X only

b. Y only

c. Z only

d. X and Y

e. Y and Z

f. X and Z

g. X, Y and Z

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