Suppose G be a connected planar graph of order n≥5 and size m. If the length of the smallest cycle in G is 5, then which of the following is true?

Suppose G be a connected planar graph of order n≥5 and size m. If th

1.	Suppose G be a connected planar graph of order n≥5 and size m. If the length of the smallest cycle in G is 5, then which of the following is true?
A.	(m+n)⁴>=mn
B.	m≤5/3(n−2)
C.	(m²+n)/3
D.	n>=(6/5)(n+1)
Answer» C. (m²+n)/3