What is a limitation of a primary-source argument? 1. Irrelevant facts
2. Personal opinions
3. Verifiable information
4. Convincing conclusions

2. Personal opinions

Explanation:

Primary sources are documents written by people who have witnessed a historical event, for example, a soldier's diary in World War II is a primary source. Primary sources are essential for carrying out good research, as they are the first-hand account of a witness of the historic moment. However, these reports often lack a critical distance, that is, the authors of the sources are unable to separate personal thoughts and emotions from historical events, and can often present exaggerated and very emotional information.

overview:

this is a technology-dependent lesson that students can guide at their own pace of exploration and learning. students share what they learn through the use of twitter (or alternative classroom sharing medium like todaysmeet). the use of a social sharing platform like twitter gives students a place for sharing with a wider audience, for more effective means of communication with each other, for incorporating viewpoints from all students in the classroom, and a means to reference thinking and learning by the use of a hashtag at a later time. students will understand the role the allied air forces played in the normandy invasion. teachers can use this as a stand-alone lesson or offer more structure by guiding students through each source, one by one. teachers may learn more about the eighth air force by accessing the abmc’s strategic bombing campaign interactive.

i believe the answer is: description

description refers to the goal of psychologist to identify the phenomenon that being observed. this goal is being actualized by collecting data/information from various clues that observed through the phenomenon. this goal must be accomplished before pyschologist able to create methods of treatment.