Pretend you are a teacher preparing a quiz for the text I will provide. 
            Each quiz question should follow the format below. 
            Ensure that you carefully recheck the questions and answers for accuracy. 
            The output should be a ready-to-use list of dictionaries for the Python eval function:

            [

                    "question": "WRITE THE QUESTION HERE",
                    "options": ["A) OPTION_1", "B) OPTION_2", "C) OPTION_3", "D) OPTION_4"],
                    "answer": INDEX_OF_CORRECT_ANSWER_IN_OPTIONS_LIST,
                    "explanation": "EXPLAIN WHY THE ANSWER IS CORRECT"

            ]

            Text:
            raight from the cervical line to the mesial contact area. then 
continues as straight line to the cusp slope. It is nearly in line with the mesial side 
of the root outline.  
-The distal outline: is slightly concave in the cervical third, then, it becomes convex 
incisally. It projects beyond the root outline.  
-Contact areas: 
 Mesial - in the incisal third below the mesio-incisal angle. 
 Distal - at the junction of the middle and incisal thirds, more cervically placed than 
the mesial contact area. 
 
-Incisal outline: 
 The cusp is usually on the root long axis line. The cusp tip is less pointed than that 
of the upper canine. 
 The mesial slope of the cusp is shorter than the distal slope. 
-Cervical line: It has a semicircular curvature root wise. 
Surface anatomy: 
 Elevation:-The labial surface is smooth and convex. 
-The labial ridge, is not as prominent as on the upper canine. 
 Depressions:- Shallow vertical depressions may be noticed on both side of the 
labial ridge in the incisal third.  
-The incisal third of the crown is flattened mesial and distal to the labial ridge. 
Outlines and surface anatomy of the root: 
-The root is short as compared to that of the upper canine by 0.6 mm to 2 mm. 
-The apical end is more pointed. 
-Its apical end is straight then it curves toward the mesial or the distal sides. 
 
 
 
54 
 
-The root is convex labially. 
2-Lingual outlines and surface anatomy: -The crown and the root converge toward 
the lingual surface. 
The crown: 
 The Lingual ridge runs from the cusp tip to the incisal one third. 
 The cingulum is poorly developed. 
 The marginal ridges are not prominent.  
 The mesial marginal ridge is longer and straighter than the short distal marginal 
ridge. 
Outlines and surface anatomy of the root: 
-The lingual portion of the root is narrower than that of the upper canine. 
-The lingual surface of the root is convex. 
Proximal (mesial and distal) aspects: 
 Geometric outline:  the crown is wedge in shape. 
3-Mesial aspect: 
The crown: 
-The crown mesially is longer and narrower labiolingually than that of upper canine. 
-The labial outline is less curved than that of upper canine with very little crest of 
curvature directly above the cervical line. 
-The lingual outline is similar to that of the upper canine, but differs in degree. 
- The cingulum is not prominent. 
-Incisally: the incisal portion of the crown is thin labiolingually. 
 The cusp appears more pointed. 
 The tip of the cusp is often located lingual to the root long axis but it may be 
centered over it. 
-N.B.: Wear facets on lower canines are found labiocervically because they wear 
against the lingual surface of the upper teeth. 


            Quiz: