The correct option is
B Intercellular
Albugo is an obligate parasite which attacks mostly crucifers like turnip, mustard, radish, cabbage, cauliflower etc. The disease caused by
Albugo is commonly known as white rust because it appears in the form of shiny, white, smooth irregular patches (pustules) or blisters on the leaves, stems and other aerial parts of the plant. Its thallus is eucarpic and mycelial. Hyphae are intercellular, coenocytic, aseptate and profusely branched.
Thus, the correct answer is option B.