Ella es de Japón. Ella es . Help please! A. japona
B. japonés
C. japon
D. japonesa

B. Japones

Explanation:

Japon-> Japan

In the second it is asking you to name her nationality rather than where she is from, so automatically it would be "Japones", as in Japanese.

If you are more curious about this topic I'd suggest looking up Spanishdict's article on Nationalities for Spanish.

Hope this helped!

Teclado

Unidad Central de Proceso  (CPU, por sus siglas en ingles)

Monitor

Ratón (Mouse)

Disquetera (Floppy)

CD-ROM