In the given exercise, an Assertion is followed by the corresponding Reason. Mark the suitable answer from the given options:
1. Assertion: Xylem is a heterogeneous tissue made up of different types of cells.
Reason: It consists only of living cells like xylem parenchyma and xylem fibres.
2. Assertion: Phloem can translocate food in both upward and downward directions.
Reason: Sieve tubes are living and possess lignified secondary walls for conduction.