The passage below is the concluding paragraph of the article...

The passage below is the concluding paragraph of the article “Accreditation in Aviation” by Marjo Mitsutomi and Jerry Platt.

Conclusion: Direction Matters “There ______ substantial ______ over the past decade in developing and implementing a global standard for air traffic communication. ______, the current state of affairs can be characterized as chaotic, inconsistent, and somewhat removed from the actual ICAO benchmarks for proficiency. Given nearly 200 member states, with very different needs, resources, and levels of preparedness, it is appropriate that there ______ multiple training paradigms and options, ______ multiple testing instruments. What is missing is an accreditation organization that can help level the playing field, can keep all parties honest, and can protect the consuming public from the current glut of ______.”
Choose the option below that completes the passage correctly.