rescued a dog

Question
I had rescued a dog about a month ago...she is 7 years old and is doing pretty good so far with the training. she was never near other dogs or people. we take her to the dog park twice a day now and she is doing awesome. But She seems to have a problem with men... we have noticed its with men that wear dark clothing... could you tell me what the reasons may be for that and what we can do to help her. Please!

Answer
Since you don't know her background,it could be a number of things,she could have been treated harshly by a man in dark clothes,but the most common reason is lack of socialization

The best way for her to overcome this,is to have men give her small treats,even if at first they have to toss it to her.This will make her see they aren't going to hurt her