Complete analogous pair - Oxygen : Burn : : Carbon dioxide : ?

C. EXTINGUISH

Choose or find odd letter group - AUgPZ, MXiDV, KFeCO, YGLhT, UHmQY

D. YGLHT

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.
6 9 15
8 12 20
4 6 ?

B. 10

Hand : Wrist : Bangle

A. FOOT : ANKLE : ANKLET

Choose or find odd word - Mariana , Nigar , Angel , Gersoppa , Victoria

A. MARIANA