Concept:
Industrialization refers to the transformation of an economy from one primarily dependent on agriculture to one dominated by manufacturing and modern industries. It is considered a key indicator of modernization because it increases productivity, employment, technological advancement and national income.
Countries with a strong industrial base generally possess greater economic strength and higher standards of living.
Step 1: Examine Assertion (A).
Industrialization has historically been associated with modernization and economic development.
It promotes:
• Technological progress.
• Structural transformation.
• Expansion of manufacturing.
• Higher national income.
• Greater economic and strategic power.
Therefore,
\[
\boxed{\text{Assertion (A) is Correct.}}
\]
Step 2: Examine Reason (R).
Industrialization generally leads to:
• Higher labour productivity.
• Better utilization of capital.
• Increased output.
• Higher wages and incomes.
Hence,
\[
\boxed{\text{Reason (R) is Correct.}}
\]
Step 3: Determine whether (R) correctly explains (A).
The reason directly explains why industrialization is regarded as a hallmark of modernization and national economic power.
Since industrialization increases productivity and incomes, it strengthens economic growth and national development.
Thus,
\[
\boxed{
\text{Reason (R) correctly explains Assertion (A).}
}
\]
Therefore,
\[
\boxed{\text{Correct Answer}=(A)}
\]