Interesting question!

The short answer to your question is “a” (salmon).

The long answer is that while salmon and forel fish (aka trout) are both great for a healthy diet, salmon has twice as much fat (DHA and EPA fatty acids) as forel fish.

See: Trout vs salmon – everything you need to know about two nutritional powerhouses

בס”ד
asking a simple question.
have opportunity to buy salmon fish or forel fish, healthiest choice ?
please give me an easy anawer a or b
thank you.