What is changed in metamorphic rocks?

What is changed in metamorphic rocks? Correct Answer (1) and (2) both

Structicture and Formation is changed in metamorphic rocks. Due to subduction of rocks to lower levels of Earth's crust they experience high temperature and high pressure due to which their formation and structure changes as they recrystalline.

Related Questions

Which of the following are Metamorphic rocks?
The principal reason for the formation of metamorphic rocks is ________
"All changed, changed utterly: A terrible beauty is born" This extract is taken from W.B Yeats' poem titled _______
Which of the following is NOT a metamorphic rock?