$20.**$In operations management, the 'Theory of Constraints' focuses on:$**$

a$.$ Identifying and managing system bottlenecks

b$.$ Expanding market share

c$.$ Reducing marketing costs

d$.$ Increasing production volume

$21.**$The EOQ model helps determine:$**$

a$.$ The optimal order quantity

b$.$ The best marketing strategy

c$.$ The ideal production schedule

d$.$ The most efficient financial plan

$22.**$Which of the following is a measure of productivity?$**$

a$.$ Output per hour worked

b$.$ Sales revenue

c$.$ Market share

d$.$ Customer satisfaction

$23.**$A fishbone diagram is used to:$**$

a$.$ Identify potential causes of problems

b$.$ Develop marketing strategies

c$.$ Measure financial performance

d$.$ Analyze customer demographics

$24.**$In operations management, 'outsourcing' refers to:$**$

a$.$ Hiring more employees

b$.$ Purchasing raw materials from another country

c$.$ Contracting out business functions to external providers

d$.$ Developing in$-$house production capabilities

$25.**$The primary purpose of a process flowchart is to:$**$

a$.$ Illustrate the steps in a process

b$.$ Analyze financial data

c$.$ Segment the market

d$.$ Develop new products