Question

scientists theorized that the continents were once joined together even before they had modern evidence from rocks and fossils. using only maps, they observed that -
continents with the most temperate climates were found near the equator.
the shapes of continents appeared to allow them to fit together.
most of the larger land masses are in the northern hemisphere.
the oceans have become smaller throughout the history of earth.

Explanation:

Early proponents of continental drift (like Alfred Wegener) first noticed that the coastlines of continents (e.g., South America and Africa) appeared to fit together like puzzle pieces, using only world maps, before modern geological/fossil evidence was widely analyzed. The other options are not observations that led to the initial continental join hypothesis from map analysis.

Answer:

B. the shapes of continents appeared to allow them to fit together.