Explanation: the answer is problem-solution
<u><em>Subject. A subject in grammar is the first part in a sentence about which the second part, the predicate, tells something.</em></u>
Answer:lhkllknkkknknkknk lhkllknkkknknkknk knkkknknknnkn
lhkllknkkknknkknk knkkknknknnknlhkllknkkknknkknk knkkknknknnkn
Explanation: