Answer:
cluster
Step-by-step explanation:
From the question we are informed about Porter's study which identified components of the German textile and apparel sector: cotton, wool, synthetic fibers, sewing machine needles, and textile machinery. These were all successful industries in a single country that grouped into related industries. This grouping is an example of cluster of basic factors of production as identified by Porter.
Factors of production can be regarded as resources which are been considered as the building blocks of an economy, they are the inputs that are used in the production of goods as well as services. It can be divided into categories by Economists; these are
✓capital
✓land
✓ labor
✓entrepreneurship.