Which of these statements about the Shell petroleum company logo's evolution is correct?

The natural world has inspired countless iconic brands, especially in the energy and environmental sectors. Company logos often evolve subtly over time, reflecting changing attitudes toward nature and sustainability. This poll tests your knowledge of one of the world's most recognizable nature-inspired corporate symbols and how it has transformed through the decades while maintaining its core natural element.

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The original 1900 Shell logo was a realistic mussel shell, not the scallop shell design we recognize today
Shell's iconic red and yellow color scheme was added in 1948 to represent the Spanish flag, as Spain was their largest market at the time
The Shell logo has been simplified at least 8 times since its inception, gradually removing detailed drawing elements while maintaining the shell shape
Until 1999, the company name appeared inside the shell graphic rather than below it as it does in modern versions