What would be a proper way to indicate possession for a plural noun like "dogs"?

The use of "dogs'" to indicate possession for the plural noun "dogs" is accurate because it follows the grammatical rule for forming the possessive of plural nouns that already end in "s." When you have a plural noun like "dogs," the possessive form is created by adding an apostrophe after the "s." This signifies that something belongs to multiple dogs. For instance, if you want to say that the toys belong to the dogs, you would write "the dogs' toys."

In contrast, the other forms do not correctly express the idea of possession for "dogs." "Dog's" refers to something belonging to a single dog, which is not applicable here. "Dog" presents the base form of the noun and does not indicate possession at all. Meanwhile, "dogs's" erroneously adds an extra "s" after the apostrophe and is not a standard convention for forming possessives with plural nouns that end in "s." Hence, "dogs'" correctly indicates the possessive relationship.