Which term best describes a seamless progression with no clear boundaries?

• A. Phase
• B. Interval
• C. Continuum
• D. Segment

Answer: (C)

A continuum captures a smooth, unbroken sequence where adjacent points flow into one another with no sharp breaks. That makes it the best fit for a seamless progression with no clear boundaries—the kind of progression where you can’t draw a definite line where one state ends and the next begins. A phase implies distinct stages with identifiable borders, an interval is the span between two endpoints, and a segment is a defined portion with endpoints. Think of a color spectrum or a gradual change in a variable—these illustrate a continuum because the transition is continuous and boundary-free.