Fill the blank spaces to complete the text.
Product Life Cycle Strategies 
1. Product Development (sales at , investment costs high, profits negative) 
2. Introduction (low sales, negative profits, little competition) 
3.  (rapidly rising sales, rising profits, growing competition) 
4. Maturity (sales , high profits,  begins to decline)
5. Decline (declining sales, declining profits, declining competition) 
WORDS TO USE: Growth, Competition, Zero, Peak