Which argument best explains the charge of an atomic nucleus?

nucleus is positively charged because it is composed of neutrons. an atomic nucleus is positively charged because it is composed of protons.

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.