D) I am so terribly sorry., would be the most formal.
People don't have feathers so D is not an option. Alliteration is the repetition of the same beginning sound in a group of words so that also is not an option. Simile uses like or as - not an option. Metaphor is a comparison of two different things, hope to a bird (thing with feathers). B is correct.
The answer is B since because it is combining two sentences together
Explanation:
The teaching of mother is important because it helps in developing child's personal ,social and cultural skills and identity. It supports to develop child's critical thinking and literacy .The teaching of other languages in elementary school may be hard for students to learn and understand so the teaching of mother tongue should be practiced for better understanding and learning of children. Learning the native same language signifies same history of your parents,grand parents and cultures
