Choose the best answer A, B, C or D to complete the following sentences.

Did the children enjoy ………… when they were on holiday?

A. themselves

B. ourselves

C. himself

D. itself

A.  l = 4 log 2 a

B.  l = 1 2 log 2 a

C. l = 1 2 log 2 a

D.  l = 1 4 log 2 a