Read the following passage about online learning and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.
Virtual assistants, AI-powered software applications, (18) ________. These tools experienced significant growth and gained widespread popularity in 2020. Designed to understand spoken or typed language, they represent (19) ________. Unlike basic software programs, virtual assistants can interact naturally with users, making them useful across various fields, from customer support to productivity enhancement.
Powered by natural language processing (NLP), (20) ________. They analyze and interpret user inputs to provide relevant responses or perform tasks, learning and adapting based on user behavior over time. Thus, virtual assistants (21) ________ and continuously enhance the accuracy of their responses, are becoming increasingly significant on a global scale. Despite their benefits, these systems also have limitations, particularly in their responses to complex queries or emotionally sensitive topics, as they lack true human understanding.
Recognizing these limitations, (22) ________. Many developers are focused on refining AI interactions to be more accurate and ethically sounD. As technology progresses, the integration of AI tools into human workflows is expected to become increasingly seamless. Virtual assistants may soon become even more integral to daily life, assisting with a broader range of personal and professional needs.