In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
12 (47) 21
10 (52) 4
64 ? 24

D. 83

Choose analogous pair - Incandescent : Glowing

D. INDEFATIGABLE : UNTIRING

Choose or find odd letter group - BDYW , CEXZ , DFYW , EGXV

B. CEXZ

Choose or find odd word - Rose, Lotus, Marigold, Lily, Tulip

B. LOTUS

Choose or find odd word - Sucrose , Ptyalin , Amylase , Pepsin , Lipase

A. SUCROSE