Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) When Palestinian militant group Hamas announced its new policy document to the world, it wasn't from Ramallah or Gaza City, but from the Sheraton hotel's gilded Salwa Ballroom in Doha. It was no surprise that Hamas chose Qatar. It's the home of outgoing Hamas leader, Khaled Meshaal, and much of his senior leadership. "Qatar is quite important for Hamas," said H.A. Hellyer, a senior non-resident fellow at the Atlantic Council. "Qatar provides strong financial aid to the occupied Palestinian territories and is a safe haven for a number of Hamas leaders." The recent crisis in the Persian Gulf region is putting that relationship in jeopardy. Earlier this month, nine countries including Saudi Arabia, the UAE, Egypt, and Bahrain cut diplomatic ties with Qatar and imposed financial embargoes of varying severity.Hamas spokesman says group hasn't been asked to leave QatarQatar says Hamas' presence is part of effort to mediate between the Palestinian factions 
 Question:_ is seen as having been under a series of pressures for the last few years, reflected in some significant internal changes.

Hamas