A junior policy analyst at the European External Action Service (EEAS) is preparing a digital report on the Union's international roles. The analyst needs to ensure the report is accessible to colleagues with visual impairments and complies with the EU's commitment to inclusive digital services. Based on the EEAS mission to support resilient democracies and human rights, which action best aligns with the principles of digital accessibility and the EU's broader digital agenda? A) Converting the report to a PDF/A format to ensure long-term preservation, B) Adding alt-text descriptions to all images and ensuring the document structure is navigable via keyboard, C) Compressing all images to JPEG format to reduce file size for faster transmission, D) Using a complex, custom color scheme to ensure brand consistency with the EEAS visual identity, E) Embedding a video summary with auto-generated captions only in English.