The table displayed below represents the ratio of the count of clients enrolled in service packages for Cloud Migration to that of those registered for Database Administration across four distinct operational intervals (A, B, C, and D) at a consulting firm.
Examine the details provided in the table to address the subsequent query.
Note: Each registered client is signed up for either Cloud Migration or Database Administration, but not both.

Time slots	Ratio of employees registered for Eye checkup to Dental checkup
A	5:4
B	7:3
C	11:4
D	1:5

Determine by what percentage the number of clients signed up for Database Administration exceeds the number of clients enrolled in Cloud Migration during interval D.

The correct option is 400%.

Step-by-step Explanation:

1. Understand the Given Data for Interval D:

From the provided table, the ratio of clients enrolled in Cloud Migration to those registered for Database Administration during interval D is given as 1 : 5.

2. Express the Values in Terms of a Variable:

Let the number of clients signed up for Cloud Migration during interval D be $x$.

Then, the number of clients signed up for Database Administration during interval D is $5x$.

3. Calculate the Difference:

The amount by which Database Administration clients exceed Cloud Migration clients during interval D is:

$5x-x=4x$

4. Calculate the Required Percentage:

To find by what percentage the number of clients signed up for Database Administration exceeds those enrolled in Cloud Migration, we calculate the percentage relative to the number of Cloud Migration clients:

$\text{Percentage Increase}=\left(\frac{4x}{x}\right)\times 100\%$

$\text{Percentage Increase}=4\times 100\%=400\%$

Thus, the number of clients signed up for Database Administration exceeds the number of clients enrolled in Cloud Migration during interval D by 400%.