When it comes to length, an application letter should

$$ a$)$ be at least two pages long, since it shows the prospective employer that you write well and are serious.

b$)$ be no more than a single paragraph.

c$)$ contain one paragraph for every $5$ years of full$-$time employment.

d$)$ be short$-$no more than three paragraphs.

$$ e$)$ be long enough to cover everything that appears on your r$$sum$.$