The is answer is:
1. first to document careful observations of different cell types
The correct answer is As technological advancements are made, the cell theory may change.
The technological advancement can lead to new discoveries, which may or may not support the existing cell theory. There are many evidences present in the past, in which the technological advancement has proved the theory incorrect or needs to be modified. So, every theory can change over time due to the new discoveries and the researches.
The root hair cell i think