What organisms participate in the intimate mutualistic relationship found in mycorrhiza?

Fungi and roots of higher plants

The correct answer is Option (2)- Fungi and roots of higher plants

Mycorrhiza is a mutualistic relationship between fungi and the roots of higher plants. In this association, fungi help the plant roots absorb nutrients, particularly phosphorus, from the soil, while the plant provides the fungi with carbohydrates produced through photosynthesis. This symbiotic relationship benefits both organisms.