In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - R, M, ?, F, D, ?

E. I, C

Choose analogous pair - Corporeal : Spiritual

C. MORON : SAVANT

Choose similar word - Diamond : Sapphire : Ruby

C. EMERALD

Choose or find odd word - Cataract , Hypermetropia , Trachoma , Eczema , Glaucome

D. ECZEMA

In the Olympic Games, the flags of six nations were flown on the masts in the following way : The flag of America was to the left of Indian tricolour and to the right of the flag of France.
The flag of Australia was on the right of the Indian flag but was to the left of the flag of Japan,
Which was to the left of the flag of China.
Find the two flags which are in the centre. 

A. INDIAN AND AUSTRALIA