Question

some tools are ________ or awkward to use, so seek assistance if required and use correct manual handling techniques when using tools. a. heavy b. light c. easy to carry d. easy to use

Explanation:

The sentence structure shows that the blank needs a word with a similar negative connotation as "awkward". "Heavy" (a) fits this as it can make tools difficult to handle, while "Light" (b), "Easy to carry" (c), and "Easy to use" (d) have positive or neutral connotations that don't match the need for seeking assistance and using correct techniques.

Answer:

A. Heavy