Complete analogous pair - Mastic : Gum : : Suet : ?

B. FAT

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.
BD3 CE5 DF15
EG2 FH4 GI8
HJ4 IK6 ?

A. JL24

Complete analogous pair - Heed : Neglect : : Pacify : ?

B. INCITE

Complete analogous pair - Taxonomy : Classification : :Pedology : ?

C. SOIL

Complete analogous pair - Oriel : Room : : Tendon : ?

B. MUSCLES