For each question, write four or five paragraphs using your points and evidence. You should avoid using numbering or bullet points. Write your ideas in full sentences and link your ideas together. Use approximately $600$ words $$to answer each question and do remember to include your references in the body of the text and also as a list at the end of the task.

the textbook referred here is "Marketing $$ An Introduction" $7$th Canadian Edition Armstrong Kotler Trifts $$Buchwitz

$1.$ How do customer relationships give companies a competitive edge?

$2.$ Describe the methods for marketing planning, including business portfolio analysis, the Boston Consulting Group market share$/$market growth matrix and the product$/$market expansion matrix discussed in Chapter $2$ of our textbook.

$3.$ Identify the components of the marketing environment.

$4.$ Chapter $5$ of our textbook discusses four psychological factors that influence a customer's purchase behavior. Name and explain each of the four factors.

$5.$ Distinguish between primary and secondary data and identify the sources of each type.