Proximal muscle weakness is not a feature of
In Myotonic dystrophy the Muscles affected are Face(including ptosis), sternocleidomastoids, distal limb, generalised later. In all other above mentioned options the proximal muscles are affected. Reference : Harrison20th edition pg 2278
Polymyositis
Myotonic dystrophy
Becker's muscular dystrophy
Duchene's muscular dystrophy
C.N.S