A Radiograph Taken During an Upper GI Series Demonstrates Poor

A radiograph taken during an upper GI series demonstrates poor visibility of the gastric mucosa.The following factors were used: 80 kV,30 mAs,1/40-second exposure time,and high-speed image receptors.Barium sulfate was used during the procedure.Which of the following factors needs to be modified during the repeat exposure?

A) Use of detail-speed screens (adjust mAs accordingly)
B) Shortened exposure time (increase mAs accordingly)
C) Use of a water-soluble contrast medium
D) Increased kV (decrease mAs as needed)