Direction: In the following question two statements are given, with some words in bold. Select the correct pair of bold words that are to be interchanged to make both the sentences grammatically correct.

1. The craft reached(A) the Moon's orbit on 20 August 2019 and began orbital(B) positioning author(C) for the landing(D) of the Vikram lander.
2. According to the maneuvers(E) of a commentary on Amarakosha, the word(F) Vindhya derives(G) from the Sanskrit word "Vaindh" which means to obstruct(H).