Oona wants to conduct research on personnel management, workplace environment, and what type of environment results in high levels of employee productivity and efficiency. oona should conduct research in the area of psychology.
a) social
b) industrial-organizational
c) gestalt
d) biological

B) industrial-organizational psychology

Explanation:

Industrial-organizational psychology is a branch in psychology that organization can use to maximise the productivity of their organization through understanding their employees psychologically. It focuses on physical and metal well-being of employees.

Industrial-organizational psychology aims at studying employees attitudes, behavior,inventing leadership training programs.

The industry side deals with studying characteristics of the employees and matching employees to those roles that goes well their personality in which they can excel.

The organizational side focuses on how the organization affect employees like its structure, norms, management styles and expectations

- "sack of constantinople, (april 1204). the diversion of the fourth crusade from the holy land to attack, capture, and pillage the byzantine city of constantinople divided and dissipated the efforts of the christians to maintain the war against the muslims. the fourth crusade was corrupted from its purpose early on."

- "the crusades were a series of religious wars undertaken by the latin church. the first crusade arose after a call to arms in 1095 sermons by pope urban ii. the first crusade unleashed a wave of impassioned, pious catholic fury, which was of constantinople, the capital of the christian-controlled byzantine empire."

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the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances