Which of the following statements is false?
a. Like operator |, union augmented assignment |= performs a set union opera-tion, but |= doesn’t modify its left operand.
b. The set type’s update method performs a union operation modifying the set on which it’s called—the argument can be any iterable.
c. Other mutable set methods are intersection augmented assignment &=, dif-ference augmented assignment -= and symmetric difference augmented as-signment ^=. Their corresponding methods with iterable arguments are in-tersection_update, difference_update and symmet-ric_difference_update.
d. All of the above statements are true.
a. Like operator |, union augmented assignment |= performs a set union opera-tion, but |= doesn’t modify its left operand.
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