In the adjoining figure line L || line M and line N is the transversal. Which of the following line is one of the pairs of alternative angles ?

\[\angle b\,\,\text{and}\,\angle f\]

\[\angle d\,\,\text{and}\,\angle e\]

In the adjoining figure line L || line M and line N is the transversal

1.	In the adjoining figure line L \|\| line M and line N is the transversal. Which of the following line is one of the pairs of alternative angles ?
A.	\[\angle a\,\And \angle e\]
B.	\[\angle d\,\And \angle f\]
C.	\[\angle b\,\,\text{and}\,\angle f\]
D.	\[\angle d\,\,\text{and}\,\angle e\]
Answer» C. \[\angle b\,\,\text{and}\,\angle f\]