Complete the Adaptive Card JSON by selecting the appropriate options for the placeholders in the code block below:

{
  "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
  "type": "AdaptiveCard",
  "version": "1.3",
  "body": [
    {
      "type": "TextBlock",
      "size": "Medium",
      "weight": "Bolder",
      "text": "{{slot1}}"
    },
    {
      "type": "TextBlock",
      "text": "{{slot2}}",
      "color": "Attention"
    },
    {
      "type": "Image",
      "url": "{{slot3}}",
      "size": "Medium",
      "altText": "{{slot4}}"
    }
  ]
}