C is a procedural language, hence there is no concept of classes, objects, inheritance, encapsulation, and polymorphism.
C++ is an Object-Oriented language. Polymorphism, encapsulation, and inheritance are the essences of OOPS.
You cannot run C++ code in C, however, you can run most of the C code in C++ Less
Just talk about your past engineering projects, specifically something other than a senior design project, which shows some personal commitment and adds some credibility if you're only an undergrad. Less
I like that engineering provides its students a pair of new glasses to view the world with where physical processes are no longer a mystery. I dislike the heavy coorpatism that has become embedded within engineering. Less