Yes, it's true. Schools do allow topics based on religious things, but it depends on the topics though. If the topics are weird, I advise you to not write letters based on weird topics, ok?
Answer is abab bcoz u have to see last word of every line name the first sound as A which is sun and in second line name second sound of red as B , in 3rd line again sound of 1st line repeated i.e dun so its again A and similarly in 4th line head gives same sound as red gives in 2nd line so again B.
FINAL scheme is ABAB
C- illustrate data in rows and columns