In Addition to Variables, Ruby Also Permits the Storage of Collections

question 42

Multiple Choice

In addition to variables, Ruby also permits the storage of collections of data using which of the following constructs?

• A) Arrays and Hashes
• B) Lists and Collections
• C) Variables and Constants
• D) None of the above

---

Definitions:

Economies of Scale

Cost advantages that entities attain due to the scale of operation, with costs per unit of output generally decreasing with increasing scale.

Economic Profit

The difference between total revenue and total costs, including both explicit and implicit costs, measuring the performance exceeding opportunity costs.

Short-Run Equilibrium

The condition in which supply and demand are equal at a particular price level, within a short time frame, before all variables have fully adjusted.