The correct answer is: B. stable
A stable government is one that is able to maintain order and stability within its borders. It is a government that is able to provide its citizens with basic services, such as security, healthcare, and education. A stable government is also one that is able to respond effectively to crises and challenges.
The other options are not as suitable for the given context. A sustained government is one that is able to continue in power for a long period of time. However, this is not necessarily a desirable quality in a government, as it could lead to corruption and stagnation. A stationary government is one that does not change or develop. This would not be helpful in tackling the challenges that a country faces today, as the challenges are constantly changing. A stagnant government is one that is not growing or developing. This would also not be helpful in tackling the challenges that a country faces today, as the challenges are constantly changing.
In conclusion, the correct answer is: B. stable. A stable government is one that is able to maintain order and stability within its borders. It is a government that is able to provide its citizens with basic services, such as security, healthcare, and education. A stable government is also one that is able to respond effectively to crises and challenges.