Read the sentence carefully. Which revision corrects the error? Joseph chose not to practice his most important piece his solo. Joseph chose not to practice: his most important piece his solo. Joseph chose not to practice his most important: piece his solo. Joseph chose not to practice his most important piece: his solo. Joseph: chose not to practice his most important piece his solo.

Without any doubt, the correct answer is:

Joseph chose not to practice his most important piece: his solo.

Explanation:

not concrete, existing in thought or as an idea but not having a physical or concrete existence

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.