The answer is C as shown on brainly. Theres a question posted on brainly just the exact same as yours. I'd stick with C because the person had given a full explanation to it, I can't copy & paste but I would if I could.
Answer:
50mm
Explanation:
Hello, idk if this helps but I searched it up and it said 50mm standard.
https://www.google.com/search?q=The+best+type+of+lens+to+use%2C+when+shooting+portraits%2C+would+be+______+lenses.&oq=The+best+type+of+lens+to+use%2C+when+shooting+portraits%2C+would+be+______+lenses.&aqs=chrome..69i57j69i61.1370j0j4&sourceid=chrome&ie=UTF-8
I assume wider. :)
Answer:
Hi! Although those are very pretty cupcakes I'm unsure of what you want me to do with them. If you would like to let me know I will edit this answer.
D) Linocut. I've done it before, you usually use linoleum.