Which of the following statements best dascribes Edison's contributions? D His most important invention was the phenograph. His most important invention was the automobile, and he revised the assembiy line to improve production of it. He invented a wide variety of items and fled more than 1,000 patents. DONE

## Step 1<br />The problem is asking us to identify the statement that best describes Edison's contributions. We have three options to consider.<br /><br />## Step 2<br />The first option suggests that Edison's most important invention was the phonograph. While Edison did indeed invent the phonograph, this statement does not fully capture the extent of his contributions.<br /><br />## Step 3<br />The second option claims that Edison's most important invention was the automobile, and he revised the assembly line to improve production of it. This statement is incorrect because Edison did not invent the automobile or the assembly line.<br /><br />## Step 4<br />The third option states that Edison invented a wide variety of items and filed more than 1,000 patents. This statement is accurate and provides a comprehensive overview of Edison's contributions.