Given here is a paragraph. Its last sentence is missing. Select the most appropriate sentence to complete the paragraph.
Most of the year 2021was focused on the revival of businesses. Companies have continued their investments in up-skilling and re-skilling their workforce. In fact, in 2021, investments in up-skilling saw18% to 25%increase. _______

A

The pandemic has taught employers the importance of having a multi-skilled work force.

B

AI and machine Learning became more prevalent in the skilling process.

C

Some of the sectors where these investments have gone up are IT, e-commerce, pharma and EdTech, among others

D

The year 2021also made blended learning more acceptable