Category A or Category B

[montella]

Hi everyone.
I have got the same dilemma on the question of Category A or B.
I am on monthly salary and in the past 11 months my salary is as follows :
30 Nov 16 - 1179.
30 Dec 16 = 1893.
31 Jan 17 = 2520.
28 Feb 17 = 2031.
31 Mar 17 =1893.
28 Apr 17 =1913.
31 May 17 = 1913.
30 June 17 =2102.
31 Jul 17 = 1435.
31 Aug 17 = 2038.
29 Sep 17 =1558.
Please help which category is the best option for me as I am worried about July pay (1435) which is the basic pay as I was in annual holiday.