What does the map below demonstrate about the impacts of the Protestant Reformation?

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Captionless Image
a. The Catholic Church retained control over most of Europe
b. Very few people decided to accept the new religions of Protestantism
c. Many other Protestant religions developed after Lutheranism
d.
The spread of Islam into Europe quickly followed the growth of Lutheranism

d. The spread and impact of Lutheranism on Europe

The map below does not provide any information about the impacts of the Protestant Reformation. It is not possible to determine which of the given options, if any, can be inferred from the image as there is no caption or context provided.