The _______________ provides point-to-point access to a bidirectional single-mode optical fiber.

The _______________ provides point-to-point access to a bidirectional

1.	The _______________ provides point-to-point access to a bidirectional single-mode optical fiber.
A.	Optical regenerator
B.	Optical session
C.	Optical distribution node
D.	Optical buffer
Answer» D. Optical buffer