Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions from 43 to 49.

Education technology (EdTech) is one of the few industries experiencing a sharp upward demand, reinforcing its potential for profitability and the role it can play in societal wellbeing.

The global spreading of the coronavirus (COVID-19) has required drastic regulations in an effort to contain it. One of the first compulsory measures taken by affected countries has been the closure of all schools. The sudden adjustments of educational processes and altered dynamics between all involved parties - schools, teachers, students and parents – are challenging familiar routines and threatening crucial public objectives. Accordingly, the World Bank has commissioned its EdTech expertise team to support policymakers worldwide in facilitating the continuation of basic education by adapting to modern technologies.

EdTech's practical value has hence rapidly improved from its pre-pandemic standing. Previously considered an option for quality education and a supplement to traditional schooling systems, it is now essential for preserving a progressing society.

Institutions previously working with digitalized education platforms have already benefitted during the COVID-19 crisis from their contemporary approach. These schools smoothly mastered the sudden transition to homeschooling, easing the adjustment process for students and parents. Their early investment in equipment and software and in coaching of educational staff has allowed them to continue their operations with minimal interruption.

Investors have long identified the windows of opportunity offered by technology in the classrooms. However, its recent unprecedented expansion highlights even more its sustainable profitability. “So far only 2 to 3% of the 5 trillion USD spent globally on education is digital. This, combined with EdTech's sudden vital role during COVID-19 and the significant differences seen up to now in its geographical investments, intensify the previously unseized global growth opportunities", says Dr. Kirill Pyshkin, Fund Manager at Credit Suisse Asset Management.

(Adapted https://www.credit-suisse.com/)

Câu 43: What does the article mainly discuss?

The issue ________ at the conference was an extremely complicated one.