Which sequence is correct in the life cycle of alternation of generations?

The correct sequence in the life cycle of alternation of generations is in the form of:

{Gy – G – Z – Sy – S}

where,

Gy = gametophyte

G = Gametes

Z = Zygote

Sy = Sporophyte

S = Spores

Therefore,

of those who start drinking before they're 15 will develop alcohol dependence

i believe it would be c: tons.