Answer:
The first sentence "Being trained in ASL opens doors to all kinds of jobs."
Step-by-step explanation:
As a rule of thumb authors will almost always introduce the main point in the first, or topic sentence, of a paragraph. However, in this paragraph specifically, you can tell the main point is in the first paragraph because it is the claim that is supported by the rest of the sentences. The first topic claims that ASL can help people find more jobs; then, the subsequent sentences describe the jobs such as teachers and translators. Since the first sentence makes the claim the rest support it must be the main point.