5.1
2-(a),6-(b)
5.2
1-(c), 2-(c), 7,10
5.3
1-(c),2-(c),6
5.4
4-(a),6-(a),10-(a),16
5.5
1-(b)
5.6
1-(a) (two-step A-B), 2-(a)
(two-step A-M),8-(a),10,12
5.7
1-(a)
5.8
1-(a)
5.9
1-(a),2-(a)
5.10
2,4,8
5.11
1-(a),6