The backlink in the sense a link which one is coming from another website (website gets from another site). it makes a huge impact on your website’s ranking and searches result. we should be considered those sites very useful for our business niche and it’s really helpful to improve the website’s SEO ranking. It called as a “Valuable”
There are some reasons that you’ll look at before you decide the link is valuable or not. I would like to say simply if the site has “This content is valuable, credible and useful”. which means, these are the overall top three, officially confirmed by Google itself.
1 & 2: Links & Content
Coming to your question, comparing two sites, BBC is a trustworthy site. so you can go for it.
Hope you can understand my points. If you have any further clarifications, please read my answer properly and get back to me 🙂