Danny is an associate with Valley Chartered Accounts in New York. Among various other work commitments, Danny has to file the tax returns of Emerald Builders, an important client. It is a job with heavy workload and a short turnaround deadline. Sam, Danny's colleague, observed this stressful situation and volunteered to assist Danny in meeting the deadline. The support received by Danny can be best described as .

A. marginal support

B. physiological support

C. emotional support

D. adaptive support

E. instrumental support

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.