13 March 2019, after two recent crashes almost half of the world has grounded _____ planes?

Question

Accepted Answer

Boeing 737 MAX 8. A is correct because the Boeing 737 MAX 8 was grounded following crashes in early 2019. B is incorrect because the grounding specifically related to the MAX 8 model. C is incorrect because the issue did not involve the MAX 11 variant. D is incorrect because there is no record of a Boeing 737 MAX 10 model being involved.