Elena finds it very difficult to remember a long string of numbers, so she tries to memorize three numbers at a time. Later, she is able to repeat the numbers correctly because she grouped the numbers into more manageable groups of three. This is an example of .
chunking

Chunking          

Explanation:

Elena finds it very difficult to remember a long string of numbers, so she tries to memorize three numbers at a time. Later, she is able to repeat the numbers correctly because she grouped the numbers into more manageable groups of three. This is an example of chunking. Chunking is the process of reorganizing information/compacting them into more manageable units for easily recall. Chunking can be achieved by the use of acronyms and hierarchies.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.

answer is b shrapnel injuries