Continental mantle plumes that are composed of felsic magma tend to be explosive when the Earth's surface is reached. These explosive eruptions create:

A. calderas
B. plutons
C. fissures

A. calderas

Explanation:

A caldera is a hollow form that is shortly formed after the melting of the magma chamber after eruptions and the above structure of the magma chamber is lost and the ground surface may partially or completely get collapsed and form a massive depression. This is triggered by the melting of the magma chamber under the volcanoes which are composed of the felsic magma and are explosive in nature. The eruption takes places in various stages and some exception includes the nonexplosive type of the shield volcanoes of Hawaii.