We are asked to find a pair of words with nearly the same meaning.
Let’s assume the options are numbered and refer to these words:
2. Hasten – means to speed up.
4. Expedite – also means to cause something to happen sooner or more quickly.
Since both “hasten” and “expedite” imply speeding up a process, they are synonyms.
Hence, the correct pair is (D) 2 and 4.