To identify the data type also known as a binary object, let's analyze the given options:
A. date/time: This data type is used to store dates and times. It represents calendar dates and times of the day, and is not related to binary objects.
B. AutoNumber: This data type is typically used in databases to generate a unique number for each record automatically. It is often used for primary keys, not for storing binary objects.
C. BLOb (Binary Large Object): This data type stores binary data, such as images, multimedia files, and other types of large binary data. It stands for Binary Large Object and is indeed also called a binary object.
D. Boolean: This data type is used to store only two values: true and false. It is used for logical conditions and is not related to binary objects.
Given these analyses, the correct answer is:
C. BLOb
