Consider the following water bodies: [World Geography]

I. Lake Tanganyika

II. Lake Tonlé Sap

III. Patos Lagoon

Through how many of them does the equator pass?

The correct answer/option is None.

Let us analyze each of the given water bodies and their geographic coordinates to determine if the equator passes through them:

I. Lake Tanganyika:
Lake Tanganyika is one of the African Great Lakes. It is situated between latitudes $3o$ South and $9o$ South. Since it lies entirely in the Southern Hemisphere, the equator (which is at $0o$ latitude) does not pass through it. The equator passes slightly to the north of Lake Tanganyika, through countries like Uganda, Kenya, and the Democratic Republic of the Congo.

II. Lake Tonlé Sap:
Tonlé Sap is a seasonally flooded freshwater lake located in Cambodia, Southeast Asia. Its geographic coordinates are approximately $12o30\text{'}$ North latitude. Because it is located well north of the equator in the Northern Hemisphere, the equator does not pass through it.

III. Patos Lagoon (Lagoa dos Patos):
Patos Lagoon is a large coastal lagoon located in the state of Rio Grande do Sul in southern Brazil. Its coordinates are approximately between latitudes $30o$ South and $32o$ South. Located far down in the Southern Hemisphere, the equator does not cross it.

Since the equator does not pass through any of the three water bodies listed (Lake Tanganyika, Lake Tonlé Sap, or Patos Lagoon), the correct option is indeed None.