Which statement best summarizes the central ideas of the text?
a. when people decide to spend time alone it is important that they use that time to learn new skills, otherwise their solitude will not be valuable.
b. while people often view solitude through a negative lens because it has been used as a punishment, time alone can provide rest, creativity, and other benefits.
c. people in modern society need more time to be alone than in previous eras because they are exposed to more information and interactions via technology such as smartphones.
d. many people believe that spending time alone is only important for younger children, but in fact research has found that spending time alone is beneficial for older adults as well.