I just learned prep. phrases like 3 months ago but i think it is B.
The sentence is missing two words, "will" and "a."
the corrected version would be:
In today’s blog post, I //will// teach you how to make //a// watermelon salad with feta and mint! With less than five ingredients, it’s a feast for the eyes and the palette.
Even though there is no options to choose, I have got that one which is the most suitable. The relevant detail to <span>Frederick Douglass's autobiography is :
</span>The mush was put into a large wooden tray, or trough, and set down upon the ground. I am pretty sure you had this option given with the task, because this one is universal and will help you in any case.
It is B,A, and D hope this helped