Which one of the following statements about Rabatak inscription is no

Which one of the following statements about Rabatak inscription is not correct ?

It throws important light on Kushana genealogy.
It refers to Kanishka as 'a king of kings and a son of God'.
The 23-line inscription is written in Gandhari language.
It mentions names of States which were part of Kanishka's empire.
This question was previously asked in
UPSC NDA-1 – 2023
The Rabatak inscription is a stone inscription discovered in 1993 at Rabatak, Afghanistan. It is written in the Bactrian language (a Middle Iranian language) using the Greek script. It is historically significant as it provides crucial information about the genealogy of the Kushana king Kanishka I, listing his ancestors. It also mentions Kanishka’s status, referring to him as “king of kings, great king, the son of God” (shaonano shao Bazodeo). Furthermore, it lists various cities and regions that were under Kanishka’s rule. The statement that the inscription is written in the Gandhari language is incorrect; Gandhari is a Prakrit language usually written in the Kharosthi script.
The Rabatak inscription is written in the Bactrian language using the Greek script, not the Gandhari language.
The inscription was commissioned by Kanishka I and provides details about his lineage (mentioning Kujula Kadphises, Vima Taktu, and Vima Kadphises), his religious patronage (listing various deities), and the extent of his empire. It is one of the most important epigraphic sources for understanding the Kushana period.