Consider the following statements :a. High speed Ethernet works on optic fiber.b. A point to point protocol over Ethernet is a network protocol for encapsulating PPP frames inside Ethernet frames.c. High speed Ethernet does not work on optic fiber.d. A point to point protocol over Ethernet is a network protocol for encapsulating Ethernet frames inside PPP frames.Which of the following is correct ?

• A. a and b are true; c and d are false
• B. a and b are false; c and d are true
• C. a, b, c and d are true
• D. a, b, c and d are false