The word 'LEMON' is transformed into 'MFNPO'. What is the transformation rule applied here?

A. EACH LETTER IS SHIFTED FORWARD BY ONE POSITION.

In a certain language, 'MANGO' is coded as 'NBOHP'. What is the code for 'LEMON'?

A. MFNPO

If 'TRAIN' is coded as 'USBOJ', how is 'PLANE' coded?

A. QMBOF

If the word 'COLD' is coded as 'DPME', how is 'WARM' coded in the same way?

A. XBNQ

If 'HELLO' is transformed to 'IFMMP', what is the transformation for 'WORLD'?

A. XPSME