Talk:Bad question/@comment-73.16.189.72-20161223181032/@comment-29935901-20170405124506

Wikipedia:

1. Andalusian is dialect (varieties). Spoken in A ndalusia,  Ceuta, Melilla , and Gibraltar .

2. Galician is language. Spoken 2,4 million (2012).

3. Murcian is dialect (varieties). In Murcia only. Murcian is considered an  endangered language.

4. Castilian is dialect (Central and Northern, without varieties). In English, Castilian Spanish  usually refers to the variety of European Spanish  spoken in northern and central Spain  or as the language standard  for radio and TV speakers.

So it is not clear which dialect the most Spanish speak. I read in Russian Wikipedia and did not understand it. I think that the answer Castilian was correct, but the participant answered wrong (Andalusian).