Read the paragraph from the article.

There are many different religious beliefs that can be found in Egyptian religion. This includes the belief in multiple gods, a god with multiple forms, the dominance of one god from a group of gods and even a kind of monotheism. In the time of the New Kingdom, from 16th to 11th century B.C. and later, ideas arose about many gods and the one god. These ideas are related to pluriform monotheism. They are sometimes related to trinitarian ideas. In a New Kingdom hymn to Amon are the words: "Three are all gods: Amon, Re and Ptah … he who hides himself for [humanity] as Amon, he is Re to be seen, his body is Ptah." As Amon he is the "hidden god." In Re, the god of the sun, he becomes visible. As Ptah, one of the gods of the earth, he is present in this world.

Which statement summarizes the paragraph?

a
Egyptian religions have both polytheistic and monotheistic beliefs.
b
Egyptian religions are related to trinitarian ideas.
c
From the 16th to 11th century B.C., many new ideas about monotheism arose in Egypt.
d
The three main gods of Egyptian religions are Amon, Re and Ptah