What are the key differences between the Bidirectional Word Mover's Distance (BWMD) and the Multiple-Choice Reading Comprehension (MRC) models?

The key difference between Bidirectional Word Mover's Distance (BWMD) and Multiple-Choice Reading Comprehension (MRC) models is that BWMD focuses on measuring the semantic similarity between two pieces of text by considering the order of Words, while MRC models are designed to answer questions based on a given passage of text by selecting the most appropriate answer choice.