a. because it is relatively stable
In order to mend the environmental issues in Eastern Europe, the Government must take steps to create mindfulness in the general public regarding the environmental concerns. Water pollution is considered to be the major factor of environmental concern in Eastern Europe.
Development of international policy would also pacify the concern as the Government may seek aid and assistance from other countries. The Government can collect data and enforce policies that safeguard the environmental resources from getting washed-out or damaged.
Danube River is considered to be important for Eastern Europe because it connects the Eastern Europe and Central Europe. Since 1800, this river route is used for trade and transportation.
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The quality features I think made this piece interesting is the rhythm of the poem, the use of proper language, and the fact that this song talks about an important moment in the history of the Philippines.
We are talking about a very traditional song in the Philippines called "Magellan," written by Yoyoy Villame. The story included in the song refers to the time when Francisco Magallanes arrived at the Island of Philipines with his crew and tried to evangelize Filipinos and turn them into Catholicism.
The song includes the brave reaction of Native Filipino Lapu Lapu that led his people to fight the Spaniards in the Battle of Mactan.
That would be the legislative branch.