Can we draw the following hypothesis from the context (see options)?

Context:

Jara, also known as Jera, is a Nigerian language reported to be spoken by 46,000 people in 2000. It is spoken in Borno and Gombe States, in the Biu, Kwaya-Kusar, Akko, and Yamaltu-Deba LGAs. It is an Afro-Asiatic language, in the BiuMandara branch of Chadic family. Use of Jara is declining; it is being displaced by Fulfulde and Hausa.

Hypothesis: Use of Jara is increasing and is replacing other Nigerian languages
Select from the following.
+ Yes;
+ It's impossible to say;
+ No;
No