(a) The board by resolution may annex the proposed territory to the district if the board finds as a result of the hearing that the annexation:
(1) is to the advantage of the district; and
(2) will not injure other land of the district.
(b) If on hearing the petition a change to the proposed annexation is found necessary or desirable, the annexation may include less than all of the territory described in the petition.
(c) The resolution authorizing the annexation must be recorded in the board minutes.