Quinn is the new marketing analyst for a sporting goods retailer. He quickly discovers that the accounting team has a file of fixed data on customer transactions that is isolated from the rest of the organization. Quinn suggests the data should be shared to relevant departments to tackle problems and provide solutions.

Refer to Scenario $4\mathrm{.}3.$ What is the fixed data Quinn discovered called?

A data silo

Complex data

A data lake

High volume data

Big data