Why might the credibility of the passage be questioned? It is short.
Read the passage from a letter by Christopher
Columbus
The inhabitants ... are well made, but because they are
timid and full of terror. ... But when they see that they
are safe, and all fear is banished, they are very guileless
and honest, and very liberal of all they have.
It is biased.
It is detailed.
It is objective.
-Letter to Gabriel Sanchez, Christopher Columbus
P

A). It is biased.

Explanation:

The credibility of the given passage by Columbus can be questioned as it offers a biased representation of the inhabitants. This prejudice is evident from the use of descriptive words like 'timid, full of terror, guileless, liberal, etc.' which imposes the author's feelings and opinions on to the readers. A text is characterized as credible when it offers an objective representation of the topic with sufficient evidences to support his/her claim. But here the author merely passes his judgment without any evidence to back it which shows the bias. This puts the trustworthiness of the content in question. Thus, option A is the correct answer.

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.

monitor contract compliance and results of forestry activities to assure adherence to government regulations.  

plan and supervise forestry projects, such as determining the type, number and placement of trees to be planted, managing tree nurseries, thinning forest and monitoring growth of new seedlings.  

establish short- and long-term plans for management of forest lands and forest resources.  

determine methods of cutting and removing timber with minimum waste and environmental damage.  

supervise activities of other forestry workers.

by the way there is no video here.