Which of the following is not a challenge to the Maasai way of
life?
A.
the declining lion population
B.
encroachment by farmers
C.
the loss of land to national parks
D.
the elimination of the kraal system

D. the elimination of the kraal system

Explanation:

The Maasai tribe of East Africa is an example of a traditional economy. The Maasai tribe typically found in Kenya and Tanzania use livestock such as goats, sheep and cattle as social utility, it serves as the primary source of income.

Some of the events that posed a challenge to the Maasai way of life includes the following;

I. A decline in the lion population because killing a lion symbolizes a rite of passage with respect to the bravery of a warrior.

II. Encroachment of their lands by farmers.

III. The loss of their lands to national parks for recreational purposes.

However, the elimination of the kraal system is not a challenge to the Maasai way of life.

A kraal system was peculiar to the Zulus and it's usually an enclosure that surrounds a livestock. They're typically used as a place for performing sacrifices, act as a homestead for livestock, used as a defense against attack.

D. the elimination of the kraal system

Explanation:

Unlike many other tribes in Kenya, the Maasai are semi-nomadic and pastoral: they live by herding cattle and goats. The Maasai have not fared well in modern Africa. ... In contrast, the Maasai have persisted in their traditional ways, so as Kenya takes more land for growing tribes and agriculture, they suffer.

81 is a composite number.