Which elsarticle documentclass parameters in LaTeX should I use for different Elsevier journals?

So here is the thing, I recently submitted a paper to an Elsevier Journal (EJOR) and prepared it using LaTeX. I used the elsarticle documentclass that Elsevier provides.

When doing this I tried to figure out how the layout of the resulting PDF should be. Specifically, I could not find any information on the parameters of the LaTeX documentclass.

In the template from Elsevier there are these example snippets (commented out):

%% Use the options 1p,twocolumn; 3p; 3p,twocolumn; 5p; or 5p,twocolumn
%% for a journal layout:
%% \documentclass[final,1p,times]{elsarticle}
%% \documentclass[final,1p,times,twocolumn]{elsarticle}
%% \documentclass[final,3p,times]{elsarticle}
%% \documentclass[final,3p,times,twocolumn]{elsarticle}
%% \documentclass[final,5p,times]{elsarticle}

So depending on the journal, I have to choose different parameters. For EJOR I used this

\documentclass[authoryear,final,5p,times,twocolumn]{elsarticle}

although I am not entirely sure this is correct. I was not able to find any information on this: which journal requires which parameters? EJOR looked like 5p, but isn't there an official source for this? Next, I want to publish to Computers & Security and, again, I can't find a hint on this. Am I looking in the wrong place?Does anyone know more about this? A site where they publish this?

Thanks a lot!