How do you access the 7th element of an array named data?

• A. data(6)
• B. data[5]
• C. data[7]
• D. data[6]

Answer: (D)

Accessing the seventh element uses index 6 because most languages use 0-based indexing, where the first element is at position 0. So the seventh element sits at index 6, and the typical syntax to retrieve it is data[6]. The other forms either follow different indexing rules or use different syntax: data(6) is from some languages with 1-based indexing and would refer to the sixth element there; data[5] would give the sixth element in 0-based indexing; data[7] would give the eighth element in 0-based indexing.