Sierra Negra experienced significant deformation, but its rate was still lower than that of Fernandina, making the correct choice for the statement. Option c. Fernandina is right choice.
To determine which volcano had a higher deformation rate than Sierra Negra, follow these steps:
Examine the Data: Look at the deformation rates for Sierra Negra and compare them with the rates for other volcanoes.
Identify the Higher Rate: If Sierra Negra had a relatively high deformation rate, find the volcano with an even higher rate.
Eliminate Options: Eliminate options with lower or similar deformation rates compared to Sierra Negra.
The correct choice is option (c) Fernandina, as it exhibited a higher deformation rate than Sierra Negra but still lower than the volcano with the most significant deformation, as indicated by the data from the researchers' calculations.