The technology that could enhance collaboration among students from the options provided is:
b. LCD touchscreen desks
LCD touchscreen desks allow multiple students to interact with the display simultaneously, facilitating group work, brainstorming sessions, and collaborative problem-solving. Other options, such as traditional chalkboards and overhead projectors, typically support more of a one-to-many communication style and do not inherently promote collaboration among students. Individual computers might allow for collaboration but generally encourage more individual work unless specifically designed for shared use.