Relationship between the number of links (L) and number of pairs (P) is___________________?
A. P = 2L-4
B. P = 2L + 4
C. P = 2L+2
D. P = 2L-2
E. P = L-4
A. P = 2L-4
B. P = 2L + 4
C. P = 2L+2
D. P = 2L-2
E. P = L-4