Correct Answer: initiate

Solution : The correct choice is the first option .

Explanation:
Commence means to begin something, and initiate means to cause something to begin. Both of the words imply the action of starting and hence are synonyms.
The meanings of the other options are as follows:

• Conclude: To bring something to an end or reach a final decision or judgement.
• Finish: To complete or bring to the end of a task, process, or activity.
• Cease: To stop or come to an end, often used in the context of activities, actions, or processes.

Therefore, the correct answer is, initiate.