To enhance your happiness, positive psychologists would encourage you to do which of the following? Select one:

a.
Have a large social network.

b.
Focus on a small but integrated social network.

c.
Focus only on whether your social network provides tangible things.

d.
Make sure you join an organized religion, and not just a spiritual community.

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.