c. desert = chaparral
Step-by-step explanation:
The desert and the chaparral do not belong together. The desert is a biome where there is no shrub lands like the chaparral, while the chaparral is found in the Mediterranean biome.
The deserts are biomes that have less than 250 mm of precipitation annually. They are arid places and are dry all of the year. The precipitation occurs once or twice a year or it may not occur for several years or even decades. The landscape is usually barren, dominated by sand or rocks, with very few highly specialized plants dispersed here and there.
The chaparral is part of the Mediterranean biome. More specifically it belongs to the Mediterranean biome found in California and northern Baja California. It represents thick shrub land which dominates the landscapes. These plants are well adapted to the dry and hot summers and the wet and mild winters, so they don't have any problem with prolonged high temperatures and drought, nor with significant amount of water over short time.