Answer:
some blood containing the virus remains in theneedle and is injected in another personwhen the needles are shared
Explanation:
Primary sources are first-hand accounts of a topic while secondary sources are any account of something that is not a primary source. Published research, newspaper articles, and other media are typical secondary sources. Secondary sources can, however, cite both primary sources and secondary sources.
Im not sure if its correct but I hope it helps
The correct answer is C.
Age affects functional fitness. As one grows older, it becomes more difficult to maintains high level of fitness for various reasons. For instance, as one ages, the density and sizes of the bones in one's body shrink and they become more prone to fractures. Also, the energy level that one has reduces as one advances in age. Thus, as one grows older, it becomes necessary to participate less in physical activities.