Social security because health care and defense and education is very important to the federal government.
Answer:
The correct grade which I think as the teacher is option A
<span>An increase in the demand for bubble gum might be caused: by </span>the fact that blowing bubbles is now a popular activity
In marketing, bubble gum is considered as an Unsought product, which is a type of product that wouldn't be bought by customers under normal conditions. This type of products usually had a really high demand when it still becomes a trend and will dramatically decrease as soon as the trend faded out.