The immune system can be strengthened by select one:

a. engrossing one's self in work so that the feeling of productivity is enhanced

b. social support

c. any number of herbal supplements

d. avoiding foods that cause indigestion or heartburn

Engrossing one's self in work so that the feeling of productivity is enhanced

Explanation:

Our immune system is essential for our survival. Without an immune system, our bodies would be open to attack from bacteria, viruses, parasites, and more. It is our immune system that keeps us healthy as we drift through a sea of pathogens.

This vast network of cells and tissues is constantly on the lookout for invaders, and once an enemy is spotted, a complex attack is mounted.

The immune system is spread throughout the body and involves many types of cells, organs, proteins, and tissues. Crucially, it can distinguish our tissue from foreign tissue — self from non-self. Dead and faulty cells are also recognized and cleared away by the immune system.

If the immune system encounters a pathogen, for instance, a bacterium, virus, or parasite, it mounts a so-called immune response. Later, we will explain how this works, but first, we will introduce some of the main characters in the immune system.

answer; i believe that the correct answer is (decreased)

recent improvements in technology/telecommunication/internet have increased the pace of globalization.

explanation:

recent improvements in technology have enhanced the pace of globalization. it is not difficult to recognize that technology has created the human race one big issue. there are several aspects to technology but they all serve to meet us the further. i can beat and be friends with a fellow, thousands of miles away. technology has also bridged the knowledge gap and has presented for the ready transfer of ideas and values.