Option 1: Collenchyma is a type of plant tissue that provides structural support to young and growing parts of plants. It is characterized by thickened cell walls, mostly in the corners. Collenchyma tissue is not known as the basic packing tissue found in xylem and phloem.

Option 2: Parenchyma tissue is indeed known as the basic packing tissue found in xylem and phloem. Parenchyma cells are thin-walled, living cells that function in various ways such as storage, photosynthesis, and gas exchange. They are commonly found in the ground tissue of plants and can be found in the xylem and phloem, where they play a role in providing structural support and storing nutrients.

Option 3: Sclerenchyma tissue consists of cells with thick, lignin-reinforced cell walls. These cells provide structural support and often have a dead appearance. While sclerenchyma is present in vascular tissues like xylem, it is not known as the basic packing tissue found in xylem and phloem.

Option 4: Vessels, also known as tracheary elements, are a type of xylem tissue that is responsible for water