Explanations:Communication between individuals in different countries has evolved significantly with the advent of modern technology. The primary requirement for Yashika to communicate with her cousin sister in Canada is a medium that allows for instant and interactive communication. The Internet is the most suitable option for this purpose.
The Internet is a global network of interconnected computers and devices that enables the exchange of information and communication across vast distances. It supports a wide range of communication methods, including email, instant messaging, video calls, and social media platforms. These methods allow for real-time interaction, making it possible for Yashika to communicate with her cousin sister instantly, regardless of the distance between them.
Other options such as radio and television are not suitable for this scenario. Radio and television are primarily one-way broadcast mediums, meaning that they transmit information from a source to a large audience but do not allow for interactive communication between individuals. They are not designed to facilitate personal conversations between specific individuals in different locations.
Similarly, a PlayStation is a gaming console and is not designed for personal communication. While it may have some online features, its primary function is to provide a gaming experience, not to enable instant communication between individuals in different countries.
Therefore, the Internet is the most appropriate medium for Yashika to communicate with her cousin sister in Canada. It provides the necessary tools and platforms for instant, interactive communication, making it the ideal choice for this scenario.