Study the stacked bar chart below, which shows the change in employment structure for a Low-Income Developing Country (LIDC) case study between 1990 and 2020.
In 1990, the secondary sector made up 5% of total employment, which rose to 13% by 2020.
Which of the following options correctly calculates the percentage-point change in secondary sector employment, and identifies the most likely driver of this economic transition within an LIDC context?
An increase of 888 percentage points; driven by a structural shift towards a post-industrial knowledge economy dominated by quaternary research and information technology services.
A decrease of 888 percentage points; driven by structural deindustrialisation as domestic trade barriers led to the collapse of urban manufacturing hubs.
An increase of 888 percentage points; driven by government initiatives and foreign direct investment (FDI) in light manufacturing hubs, such as textile industrial parks, to promote export-led growth.
An increase of 181818 percentage points; driven by the rapid mechanical automation of the agricultural sector which forced rural workers into urban heavy engineering industries.