State whether the following examples come under general, task, or internal environment. Furthermore, also state which PESTEL factors the example will fall under the general environment$/$which Porter's $5$ Forces Model the example will fall under the task environment$/$which value chain activity the example will fall under the internal environment. Provide a rationale in support of your answer. $1.$ McDonalds has practiced backward integration to reduce the cost of manufacturing and improve quality$\mathrm{.}2.$ Airline companies collaborate with online travel shopping companies, such as Expedia, to help customers book flights.