Implementing a marketing plan a. is the starting point of the marketing mix strategy to identify target markets. b. entails gauging the extent to which marketing objectives have been achieved during the specified time period. c. requires delegating authority and responsibility, determining a time frame for completing tasks, and allocating resources. d. provides the mechanisms for evaluating marketing results in light of the plan's objectives.

Letter a is correct. Is the starting point of the marketing mix strategy to identify target markets.

Explanation:

A marketing plan can be defined as a detailed document that contains the actions that a company must take to achieve its marketing objectives. Through this document, it is possible to carry out a planning for a product, service and brand.

The stage of implementing the marketing plan is the starting point for the company to outline specific marketing strategies, such as the marketing mix, which is a strategic tool used to achieve its marketing objectives in the target market.

The marketing mix model most used by companies is that of 4P: product, square, price and promotion, and for each of the variables there is a set of specific activities that integrated help to achieve objectives and goals.

Therefore, the implementation stage is extremely relevant for the company, it is necessary to adjust expectations in order to set real and possible goals to be achieved in a certain time, it is also important to assemble a team with qualified professionals for the execution of the plan, so that the actions correspond to the organizational values and strategies. Communication is also essential for feedback, new ideas and suggestions.

It is important to note that a marketing plan is changeable, as several factors influence it to evolve and change, so it is necessary to have constant monitoring and evaluation, so that this is an effective strategy for the company.