Read the following passage about humanoid robots 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.

Humanoid robots, once confined to the realms of science fiction, are now making strides in real-world applications. Atlas, as an example, (18) _______. Developed by Boston Dynamics, this advanced robot has stunned audiences with its ability to perform backflips, walk on uneven ground, and even open doors. In 2021, Atlas showcased its skills at a tech expo in Tokyo, proving its potential for disaster response and industrial applications.
Atlas is the brainchild of a U.S,-based robotics company (19) _______. Its engineers have combined breakthroughs in artificial intelligence, biomechanical studies, and sensor technology to make the robot move more like a human. (20) _______ .
Unlike earlier models, Atlas's design prioritizes human-like flexibility. Its arms and legs use special motors that mimic how human muscles work. (21) _______. What truly sets Atlas apart, however, is its ability to catch itself when falling thanks to real-time data analysis and smart programming.
Atlas's intelligence stems from a hybrid system integrating AI and human oversight. Using depth sensors and LIDAR technology, (22) _______. Researchers believe such robots could revolutionize fields like construction, space exploration, and emergency rescue operations.