Small pox was a huge problem during the pre revolutionary war erra but was not successfully araticated until the late 70s, it was wiped out because people where vacinated at a very young age. so the answer is B The smallpox vaccine was given for a long time and the disease no longer exists.
It is fair to ask siblings to step into the role of parents. If a parent isn’t doing their job right as a parent, asking an older sibling may be essential to help yourself grow to be a well functioning individual. It also doesn’t have to be an older sibling, younger siblings can be capable of helping they’re older siblings. It is most common for older siblings to help they’re younger siblings.
I can’t answer because I can’t see the story like this tho
