Elements in an array can be accessedAnswer choicesSelect only one optionREVISITRandomlySequentiallyExponentiallyNone of These

Break Down the Problem

1. Identify the Types of Access: The question asks how elements in an array can be accessed, which involves understanding different access methods.
2. Analyze the Answer Choices: Consider what each term (Randomly, Sequentially, Exponentially, None of These) means in the context of accessing array elements.

Relevant Concepts

• Array Definition: An array is a data structure that stores a collection of elements, identified by index or key.
• Access Methods:
  • Random Access: Accessing elements at arbitrary positions in constant time, typical for arrays.
  • Sequential Access: Accessing elements in a specific order, usually one after another.
  • Exponential Access: Not a commonly used term in array context, likely refers to algorithms that may iterate over elements exponentially (not applicable directly to arrays).
  • None of These: Suggests that no other options apply.

Analysis and Detail

1. Random Access is the primary characteristic of arrays, allowing direct fetching of values using their index in $O(1)$ time.
2. Sequential Access may apply to certain operations (like traversing) but is not the primary method for accessing elements directly as the question implies.
3. Exponential Access doesn’t correlate with common array operations, making it an unlikely choice.
4. None of These would only apply if all other choices were disproven, which is not the case here.

Verify and Summarize

• The correct choice is clear from the definitions. Elements in an array can be accessed randomly via their indices.

Final Answer

Randomly