Irritability is a sense of confusion. When you're sensitive, you become frustrated or disconcerted quickly. irritability is mostly influenced by external factors that could have changed one's mood. For instance, a person is constrained by his boss every time for the deadline so when he arrives home, he always being given stressed by family members or friends.
In this item, we are given that a person was diagnosed with diabetes and asked to determine what single greatest health threat is he prone to. Diabetes may increase the risk of other diseases. The greatest threat of which is the cardiovascular disease.