Which statement is true regarding the "relationship merry-go-round"? a. by the age of 40, about 75% of americans have married at least once. b. most people chose to remain single in order to pursue career goals. c. arranged marriages are no longer the norm in india. d. in some cultures, romantic love was considered a form of madness.

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

Letter a, because when there are unlike charges they will always attract to each other.