Mark the letter A, B, C, or D on your answer sheet to indicate the correct arrangement of the sentences to make a meaningful exchange or text in each of the following questions.

a. However, once the foundation is laid, the real work begins as they start building more complex systems of thought and understanding.
b. Learning a new language is challenging, especially at the beginning when students are overwhelmed by grammar rules and unfamiliar vocabulary.
c. With continuous practice, learners gradually develop confidence in their speaking, listening, and writing skills, although progress may seem slow at first.
d. Many language learners experience frustration early on, but it's important to remember that fluency comes with time and dedication.
e. In the end, the sense of accomplishment that comes from mastering a language makes the effort worthwhile, opening doors to new cultures and opportunities.