Me: (

an acid

a) has a high ph in solution

b) turns blue litmus paper to red

c) releases hydroxyl ions in solution

d) has more hydroxyl than hydrogen ( or hydronium ) ions

PH ranges from a scale of 0 to 14, where everything below 7 is acidic and everything above 7 is basic. 7 is neutral.

The lower the pH, more the hydrogen Let's go through and eliminate the incorrect ones:
A) Incorrect. An acid has a low pH in solution because the pH < 7
C) Incorrect. An acid donates hydrogen ions (H+) in a solution.
D) Incorrect. An acidic solution has more H+ (hydrogen) ions, not hydroxyl (OH-) ions.

Therefore B) turns blue litmus paper to red is true. 
When blue litmus paper is put in an acidic solution, it turns red. It does nothing in a basic solution. (Think Blue, Basic) When red litmus paper is put into a basic solution, it turns blue, and does nothing in acidic solution.

The sample with the lowest specific heat capacity will have the greatest temperature increase. in this case, it would be platinum.