Which of the phrases given below the sentence should replace the phrase printed in bold type to make it grammatically correct? If the sentence is correct as it is, mark 'E' as the answer.

Though we have kept in mind to try and maintain most facilities, we would like to request you to kindly bear with us any inconvenience that may be caused.

A.

must keep in mind to try and maintain

B.

have kept in mind trying and maintain

C.

would keep in mind to try and to maintain

D.

should have kept in mind to try and to maintain

E.

No correction required

Correct answer is E

No explanation has been provided for this answer.