Which of the Following Examples of Sharing of Profits Could

Which of the following examples of sharing of profits could constitute evidence of the existence of a partnership?

A) After Pablo's photography partner dies,Pablo gives Olita,the partner's widow,$100 a month out of respect for Sander.
B) Pablo and Olita,two photographers,split the fees obtained at their photoshoots.
C) Pablo,a photographer,gives his friend Olita,who owns a building,$500 for letting him use an apartment for his photoshoots.
D) Pablo,a photographer,gives Olita $500 from the fees of a photoshoot,to repay a loan.
E) Pablo,a photographer who sets up photoshoots,gives his friend Olita,who is learning the business,$100 for "helping him out" on the photoshoots.