Which sentence correctly uses preferred specification writing language?

The choice of using imperative language provides clear, direct instructions to the reader, which is essential in specification writing. This approach eliminates ambiguity and clearly communicates the action to be performed without any unnecessary complexity. The use of an imperative structure ('Spread adhesive with a notched trowel') is effective as it directly instructs the user to take action, making it suitable for construction specifications where precise execution of tasks is critical.

Other options employ language that either introduces unnecessary qualifiers or uses passive voice. For instance, using "shall" or "should" can create a sense of obligation or recommendation that may not be as straightforward, and the passive construction does not provide a clear agent for the action. In specification writing, it is crucial to avoid these forms to ensure clarity and directness in communication. Thus, option B stands out by adhering to the preferred specification writing approach.