Rose a Namibian who lives in Rundu and did her first degree in Windhoek, contacted all her five old Windhoek friends and went and plaited their hair. In recognition of the services she rendered, her two friends paid her N$800 immediately and after she had retumed to Rundu, the other three gave the outstanding balance of N$1 200 to her sibling who was doing her 3rd year in Windhoek. Required: Advise Rose which amount(s) will constitute gross income in her hands and why