Let a graph have vertices ?,?,?,?,?,?H,I,J,K,L,M and edge set {{?,?},{?,?},{?,?},{?,?},{?,?},{?,?},{?,?},{?,?}}{{H,I},{H,K},{I,J},{I,L},{J,K},{J,M},{K,M},{L,M}}.
a. What is the degree of vertex ?H ?
b. What is the degree of vertex ?J?
c. How many components does the graph have?