QUESTION 14 Answer the NEXT FOUR (including this one) questions based on the following ER diagram and its assumptions. This diagram partly models an academic conference, which is organized into several tracks (subjects). Research papers are then submitted to each track. A track may not have any research papers. Reviewers are then assigned to research papers for review. Please complete the ER diagram by adding crow's foot notation to represent cardinalities (both minimum and maximum cardinality). Papers Paperld Title Has / Submitted to b Type Conference Track TrackNumber Track Name Review/Reviewed by d Reviewers Reviewerld FirstName LastName Email Affiliation Given assumptions Each paper is submitted to exactly one and only one track, and will be reviewed by at least one reviewers. . Each reviewer can review multiple papers. A reviewer may not be assigned to any paper temporarily. In the ERD, four lines end where crow's foot notations are needed. These points are labeled as a. b. c. d. Four types of crow's foot notation are labeled as 1. 2. 3. 4 in the table below. Fill in the yellow color highlighted cells with 1, 2, 3, or 4 to indicate which notation should be drawn at each line end. Line end Crow's foot notation Notation Number Crow's Foot Notations a 1 b 2 K 3 -ot d 4 -ok What notation should be added to line end (a)? Please choose a notation number. 1 2 QUESTION 15 4 points Save Answer Based on the information at #14, what notation should be added to line end (b)? Please choose a notation number. 01 O2 3 04 QUESTION 16 4 points Save Answer Based on the information at #14, what notation should be added to line end (c)? Please choose a notation number. O 1 O2 03 4 QUESTION 17 4 points Save Answer Based on the information at #14, what notation should be added to line end (d)? Please choose a notation number. O 1 O2 3 04