Consider the following database for projects in a class: Student(sid, name, dept) Project(pid, topic, budget) Team(sid, pid) Relation Student contains a row for each student with a unique id, student name, and the department of each student. Each row in relation Project holds the unique id of a project, the topic area the students will be working on, and the estimated budget for the project. Finally, the table Team captures the assignments of students to projects. Which attribute(s) make up the primary key for table Team?

answer choices:

sid and pid

pid

sid

It has no primary key