The starting and ending temperatures for four separate reactions are measured. Which reaction releases the least heat?
- Ainitial temperature $19\,^{\circ}\text{C}$, final temperature $25\,^{\circ}\text{C}$
- Binitial temperature $21\,^{\circ}\text{C}$, final temperature $18\,^{\circ}\text{C}$
- Cinitial temperature $22\,^{\circ}\text{C}$, final temperature $17\,^{\circ}\text{C}$
- Dinitial temperature $22\,^{\circ}\text{C}$, final temperature $26\,^{\circ}\text{C}$