The Four Cs of 21st century learning, also known as the Four Cs or 4 Cs, are four skills that have been identified by the United States-based Partnership for 21st Century Skills (P21) as the most important skills required for 21st century education: critical thinking, communication, collaboration, and creativity.

Based on that paragraph can we conclude that this sentence is true?
More skills will be added to the Four Cs
It's impossible to say