a) Fixed size
b) There are chances of wastage of memory space if elements inserted in an array are lesser than the allocated size
c) Insertion based on position
d) Accessing elements at specified positions
Answer: d
Explanation: Array elements can be accessed in two steps. First, multiply the size of the data type with the specified position, second, add this value to the base address. Both of these operations can be done in constant time, hence accessing elements at a given index/position is faster.
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