The answer to the question mentioned above is the letter "A" microsystem, exosystem and macrosystem.
The primary components of the ecological systems approach include the following:
1. Microsystem
2. Exosystem
3. Macrosystem
The answer is A. All other choices are not correct.
Early poems were written in meter first of all to distinguish them from prose, from everything written like a text.
Also, usually these poems were sung as songs, using various musical instruments, so meter was important when it came to rhythm.
