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In Chapter 3, there was a suggested implementation of the sequence class with a fixed CAPACITY and these private member variables:class sequence{public:typedef double value_type;typedef std::size_t size_type;static const size_type CAPACITY = 30;...private:value_type data[CAPACITY];size_type used;};The sequence's constructor sets used to zero, but does not place any values in the data array. Why?A. Integer arrays are automatically initialized to zero. B. The first activation of insert or attach initializes the entire array. C. The array initialization was part of the project that was left to the student. D. The programmer who uses the sequence is responsible for initializing the array. E. When a sequence is first created, none of the array is being used.

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