Which of these conditions define boundedness?ΦF → Flow property at boundaryΦi → Flow property at nodes

• A. Φi≤max(ΦF)
• B. min(ΦF )≤Φi≤max(ΦF)
• C. Φi≥min(ΦF)
• D. Φi≥max(ΦF)