Answer – d) RPCAITEC
Explaination:
In this question, the logic used is that the word is broken into pairs of two and then, positions of alphabets in those pairs are reversed.
For Example : REGISTER
Step 1: Break this word in pairs of two alphabets.
So,
RE GI ST ER
Step 2: Reverse the positions of alphabets in each pair.
So, RE ---- ER
GI ----- IG
ST ----- TS
ER ----- RE
Now, on combining above pairs, the required coded word comes out to be ERIGTSRE(which is the given option).
Similarly for PRACTICE, the correct option is RPCAITEC