Final answer:
Iceland is the country with subglacial volcanoes such as Grimsvotn, Hekla, and Laki, as it is located on the divergent boundary between the North American and Eurasian tectonic plates.
Step-by-step explanation:
The country known for having several subglacial volcanoes, including Grimsvotn, Hekla, and Laki, is Iceland. Iceland's unique geological framework can be attributed to its location on the Mid-Atlantic Ridge, where the North American and Eurasian tectonic plates are diverging. This tectonic activity contributes to the country's high volcanic activity. Volcanic events, such as the historic eruptions of Laki in 1783-1784, had significant climatic and social impacts, extending well beyond the shores of Iceland. Additionally, Iceland's volcanoes are a part of its dynamic geology that includes features such as geysers, hot springs, and lava fields. The subglacial position of some of its volcanoes, like Grimsvotn beneath the Vatnajokull ice cap, creates powerful phreatomagmatic eruptions when magma contacts ice.