Respuesta :
b. one of the first and greatest of the florentine painters was giotto di bondone, who created frescoes that can still be seen today. He uses his own technique, which he often painted so that the viewer seems to be in the painting, observing at a distance the action taking place. Example : scenes from the lives of Mary and Jesus, he carefully arranged the figures so as to allow the viewer to feel as if he or she were there. Speaking of Gramars, no apostrophe is needed because it doe not depict ownership, only the plural form of the words painter and frescoe.
The question is about the correct use of the possessive form and the generalization with the use of the word one. It is easy to notice that the last option is not correct. Frescoes have to be in plural. In this option, the use of possessive does not apply to any kind of rule. The use of possessive in the first option is not correct because we already have used the preposition of "of" and after that it is meaningless to use possessive form. Therefore, the correct answer is B.