Can fungi move around in its environment

Nearly all species of fungi are incapable of active movement (in the strictest sense this means that the organism itself is unable to use energy to displace itself from point A to B and does not move from its starting point). Instead, most fungi colonize their environment by using spores (long-range dispersal), which can be spread by wind, water or other organisms, or by growing and elongating their hyphae (short-range). A hypha grows in length by cell division at the tips, which may cause fungi to appear to move. Although hyphae often grow in certain directions in response to environmental cues, it is not considered active movement.

Note that I said that nearly all species of fungi lack active movement. As with many other subjects in biology, there are exceptions to the rule. The kingdom fungi also includes two early phyla/groups called Neocallimastigomycota and Chytridiomycota (the latter are also commonly known as "chytrids"). The largest part of their life cycles they are immotile, just like your average fungus, but with one large difference: their spores, called zoospores, are capable of active movement. Zoospores of either group possess flagella, which are whip-like structures used to propel themselves forward in a liquid. This is a characteristic they share with many species of bacteria and protista,  These flagella allow zoospores to "swim" for a short distance to search for suitable substrates or hosts to germinate, feed, survive and reproduce. This makes the species in the aforementioned phyla the only known species of fungi to actually move.

Fungi are multicellular, with a cell wall, organelles including a nucleus, but no chloroplasts. They have no mechanisms for locomotion. Fungi range in size from microscopic to very large (such as mushrooms). Nutrients are acquired by absorption. For the most part, fungi acquire nutrients from decaying material.

i'm assuming that the correct answer is indeed the first one/ "a"..

it means there are 3 atoms of oxygen