If untreated HIV advances to AIDS, the body becomes prone to opportunistic infections. AIDS increases a person's risk for many infections, including a herpes virus called cytomegalovirus. It can cause problems with the eyes, lungs, and digestive tract.
D, opera
Extra information:
Songs were not cultivated in Italy, neither were symphonies. Concerts do mainly originate in Italy, but they do not have anything to do with the romantic era. The Opera, however is considered one of the most romantic musical forms and was cultivated in Italy. Therefore the correct answer should be Opera.
Diego Rodríguez de Silva y Velázquez was a Spanish painter, the leading artist in the court of King Philip IV, and one of the most important painters of the Spanish Golden Age.