Devoted his career

[Kuhu]

Schlimann determined at the age of seven to find the site of ancient Troy and [/u]devoted his subsequent career to do it

A.devoted his subsequent career to do it
B.has devoted his subsequent career to do that
C.devoted his subsequent career to such an end
D.has devoted his subsequent career for that
E.devoted his subsequent career to that end

[sumank8216]

E.

Determined ..we need devoted. So has devoted should be eliminated.

Now, do it is always wrong.

Such an end ..looks awkward.

Left with only E.

[viju9162]

In A, unable to find the reference for it.

B sounds ackward, D involves has.

Confused between C & E, such an end is not preferable is it ?