To achieve a minimal and streamlined look for the header of his e-commerce website, Louie should consider adding a collapsed menu button. This approach keeps the header clean and decluttered, allowing only essential items to be visible initially, while still providing access to additional navigation options when needed.
The other options, such as including links to each page or social media accounts, would likely take up more space and create a busier appearance, which is not ideal for a minimal design. Using a shopping cart button is essential for e-commerce, but it should be designed unobtrusively so as not to overwhelm the header's simplicity. Therefore, the collapsed menu button is the best choice for a streamlined header.