In a certain code language, '3a, 2b, 7c' means 'Truth is Eternal';
'7c, 9a, 8b, 3a' means 'Enmity is not Eternal'  and
'9a, 4d, 2b, 8b' means 'Truth does not perish'.
Which of the following means 'enmity' in that language ?

Option :
A. 3a
B. 7c
C. 8b
D. 9a
E. None of these

In a certain code, '786' means 'study very hard', '958' means 'hard work pays' and '645' means 'study and work'.
Which of the following is the code for 'very' ?

Option :
A. 8
B. 6
C. 7
D. Can't be determined
E. None of these

If in a certain code language, '324' means 'Light is bright', '629' means 'Girl is beautiful' and '4758' means 'I prefer bright clothes', which digit means 'Light' in that language ?

Option :
A. 3
B. 2
C. 4
D. 7
E. 5