The map below shows the percentage of the population in European countries that can functionally use the English language. Use the map below to answer the following question: A map of Europe that shows the percentage of the national population that is able to use the English language. Lighter green indicates that less than 30 percent of the population can use English. Green indicates that between 30 and 49 percent of the population can use English. Darker green areas indicate that more than 50 percent of the population can use English. Light green countries are Spain, Italy, Poland, Czech Republic, Romania, Bulgaria, Hungary, and Turkey. Green countries include Greece, Cyprus, Portugal, France, Slovakia, Estonia, Latvia, Lithuania, and Croatia. Dark green countries include the United Kingdom, Ireland, Sweden, Finland, Belgium, Luxembourg, Germany, Austria, and Slovenia.
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Which of the following inferences can be drawn from this map?

Most countries speak only one main language.
The English language is the primary language of Europe.
Less than half of the population speaks English in Southern Europe.
The use of the English language is declining across Europe.