The tissues present in anglosperms but absent in gymnosperms are:

Explanation

The correct answer is both (a) and (b). Angiosperms have unique vascular tissues, such as vessels and companion cells, which are not found in gymnosperms. Vessels are crucial for efficient water transport, while companion cells support sieve elements in carbohydrate transport. The lack of these specialized cells in gymnosperms affects their transport efficiency and growth habits. Sieve tubes, while part of the phloem in angiosperms, depend on companion cells, which are absent in gymnosperms, making option (c) incorrect.