In reply to suneet.

brother i too dunt have a solid explanation but here it comes
2X3 11X1 5X5
2X4 2X3 2X8
2X6 5X1 ?
what im doing here is factorising the elements in a way that i only choose the smallest prime number (other than one ) now in first row (3+1) +1 =5 and in the same manner 4+3+1=8 and in the last 6+1+1=8 therefore 2X8 =16 (since i was given 10 ,12,14,16)as options and all have 2 as the least valued prime no