Answer:
The correct answer is option d, that is, glomerular filtration.
Step-by-step explanation:
Digitalis toxicity can take place when one consumes too much digoxin or digitalis. It is a medicine, which is used in the treatment of heart conditions. The symptoms of toxicity comprise vomiting, nausea, and an unusual heartbeat.
In older individuals, the defect in the functions of the kidney may enhance the occurrence of digitalis toxicity. In the patients suffering from diminished glomerular filtration, the half-life of digitalis can get extended. This may eventually lead to an enhanced concentration of digitalis in the blood or known as digitalis toxicity.