Hi

it does depend a bit on how you are finding Content Type 'A" in your code. but as an example - if we assume you have some form of content picker on your content node that lets the user pick content type 'a' from b:

// get the content ID from the current page (Content "B")
var contentId = Model.GetPropertyValue<int>("contentPicker");

// get the content Node
var contentNode = Umbraco.TypedContent(contentId);
if (contentNode != null)
{
    // check the property is there and has a value
    if (contentNode.HasProperty("image") && contentNode.HasValue("image"))
    {
        var imgId = contentNode.GetPropertyValue<int>("image");
        var img = Umbraco.TypedMedia(imgId);
        if (img != null)
        {
            // you have the image here...
            <img src="@img.Url" />
        }
    }
}

assuming :

• "contentPicker" is a property on the content item where the user picks the content with the image
• "image" is the property with the image in it.