Read the sentence. the initial results seemed promising, but the final effects were kind of disappointing. revise the sentence to remove unnecessary qualifiers.
a. delete initial.
b. delete kind of.
c. delete final.
d. delete disappointing.

The initial results seemed promising, but the final effects were kind of disappointing.

In the given sentence above, the unnecessary qualifier that needs to be removed is "kind of". It is an informal expression which is usually used as meaningless fillers. So, the final sentence will be:

The initial results seemed promising, but the final effects were disappointing.