Answer:C (semantic memory)
Explanation:
Option A(procedural memory) is a type of long term "human" memory that is used unconsciously. People use this term of memory to perform certain tasks without conscious awareness. This option is not relating to frank poem he "learnt" from his grade school.
Option B(Implicit memory): There are two types of memory 1,explicit and 2, implicit .Implicit memory explains long term memory used unconsciously without awareness an example of such memory is (option. A, procedural), and this does not relate to the subject matter of the passage
Option C(semantic memory) is a type of explicit memory that is consciously used,intentionally remembrance of past events and concept such as the poem frank recited to the amusement of his grand children. The best answer is "c" (semantic), while D is not a type of memory that fits and explains the activity frank displayed.