The correct answer is D. An employee is dismissed from the job.
A transaction is an event that changes the financial position of an entity. In other words, it is an event that results in a change in the assets, liabilities, or equity of an entity.
Option A is a transaction because it results in a change in the assets of the entity. The entity has acquired goods on cash basis, which means that its assets have increased by Rs. 1000.
Option B is a transaction because it results in a change in the liabilities of the entity. The entity has incurred an expense, which means that its liabilities have increased by the amount of the salaries paid.
Option C is a transaction because it results in a change in the assets of the entity. The entity has acquired land, which means that its assets have increased by Rs. 10 lakhs.
Option D is not a transaction because it does not result in a change in the financial position of the entity. The dismissal of an employee does not affect the assets, liabilities, or equity of the entity.