This dialect has very few native speakers, but is the official language across much of the Middle East and North Africa and is used widely in literature and media. For 10 points each:
[10m] Name this dialect based on Classical Arabic.
ANSWER: Modern Standard Arabic [or MSA; or Modern Written Arabic; or MWA; accept al-Fuṣḥā or al-ʻArabīyah al-Fuṣḥā or Fuṣḥā al-ʻAṣr; prompt on Standard Arabic; prompt on Written Arabic]
[10e] Many speakers of Arabic engage in this practice of alternating between language varieties in a single conversation, using Modern Standard Arabic and a vernacular dialect.
ANSWER: code-switching [or code-mixing]
[10h] Modern Standard Arabic exists in diglossia with Maghrebi Arabic, which is known by this Arabic name meaning “everyday language.”
ANSWER: Dārija [or Darja or Derija or Derja; or ed-Dārija]
<Social Science>