Which of the following hypotheses is best supported by observing cancer cells in a culture?

• A. The cancer cells produce molecules that inhibit the growth factors required for cell division.
• B. The cancer cells exhibit anchorage dependence.
• C. The cancer cells spend the majority of their time in the G₀ phase.
• D. All of the listed responses are correct.
• E. The cancer cells do not exhibit density-dependent inhibition.