Review a classmate's post and consider their real-world context. Address all of the following items. For all references used, please cite them in APA format. No explanations may be taken directly word for word from another source. 1. In your own words, explain to your classmate what is required for a trail or circuit to be a Euler trail or circuit. 2. Does a Euler trail exist for their graph? Explain specifically using the label and degree of each vertex. 3. Does a Euler circuit exist for their graph? Explain specifically using the label and degree of each vertex. Hi, class. | hope the situation that | created, a little after what seems to be the communication relations for the company where | work, is suitable for the discussion. Also, the website | used only allowed me to label the vertices as digits instead of letters. Each vertex is a position within the company, and each edge represents the daily communications between the positions. 1 =A= associate 2=B=lead 3 = C = manager 4 = D = store manager 5 = E = regional manager In my company, the associate (A 1) and team lead (B 2) communicate most with each other but also with the managers (3 C) when needed. Leads (2 B) and managers (3 C) communicate with the store manager (4 D), and the store manager communicates with them and his boss. This regional manager mainly communicates with the store manager. &lt