Correct Answer: 5268432

Solution : Given:

INDUS is coded as 03865 and TENNIS is coded as 243305

The code of letters in the given word INDUS is I → 0; N → 3; D → 8; U → 6; S → 5

The code of letters in the given word TENNIS is T → 2; E → 4; N → 3; I → 0; S → 5

The code of the letters of STUDENT can be taken from the letters of INDUS and TENNIS.

The letters of STUDENT will be coded as S → 5; T → 2; U → 6; D → 8; E → 4; N → 3; T → 2

So, STUDENT will be coded as 5268432.

Hence, third option is correct.