When a fungus encounters a particularly rich food source, what is the expected result?
A. Hyphae stop growing and a fruiting body forms to exploit the food source.
B. Individual hyphae begin to produce spores.
C. The mycelium break down into widely separated hyphae.
D. Hyphae stop growing in length, but increase in diameter.
E. Hyphae branch and extend rapidly from their tips to form a mycelium.
