The answer is "Adolescents are generally in daily contact with their grandparents."
According to Schlegel and Barry's (1991), Cross cultural investigation, Daily contact is equivalent of grandparents to guardians in conventional societies. Normally closer to grandparents than guardians. Grandparents less inclined to practice expert and support sustaining.
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This "Necessary and Proper Clause" (sometimes also called the "Elastic Clause") grants Congress a set of so-called implied powers—that is, powers not explicitly named in the Constitution but assumed to exist due to their being necessary to implement the expressed powers that are named in Article I.
The correct answer is Systematic observation
Systematic observation is a method used to understand how a particular activity or task works. The researcher observes the steps of a process, the tools used, the difficulties that appear, the conversations and results of the work.
Systematic Observation is guided by a defined objective, something you want to know about that activity. The observation is made repeatedly until there is sufficient evidence to state this.
Systematic Observation can be used to do Behavioral Mapping, Task Analysis or Activity Analysis.
Germany was a great military figure and had competition with France. Hope that helps! :)