A [ - 8 ...12 , – 4 ...16 ]
No of rows= 12 – ( – 8 ) + 1 = 21
No of columns= 16 – ( – 4 ) +1 = 21
Address of A [ 1, 3 ] = 2000 + [ (1 – ( – 8 ) ) * 21 + ( 3 – ( – 4 ) ) ] * 4
= 2000 + [ 9 * 21 + 7 ] * 4
= 2000 + 196 * 4
= 2000 + 784
= 2784
So ans is (b)