The correct option is 48.39%.

Step 1: Identify the relevant data from the table
Based on the table provided in the image:
• The percentage of employees in Organisation D is 15%.
• The percentage of employees in Organisation C is 31%.
• The total number of employees working across all five organisations is 35,000.

Step 2: Set up the percentage relationship
We want to find what percentage the total number of employees in Organisation D is of the total number of employees in Organisation C. This relationship is represented as:

$\text{Required Percentage}=\frac{\text{Total employees in Organisation D}}{\text{Total employees in Organisation C}}\times 100$

Since both employee counts are calculated using the same total base (35,000 employees), the ratio of their actual counts is equal to the ratio of their percentages. We can calculate this directly to save time:

$\text{Required Percentage}=\frac{15}{31}\times 100$

Step 3: Verify using absolute employee counts
To verify this step-by-step, let's find the actual number of employees in each organisation first:
• Total employees in Organisation D:
$\text{Employees in D}=15\%\text{of}35000=\frac{15}{100}\times 35000=5250$

• Total employees in Organisation C:
$\text{Employees in C}=31\%\text{of}35000=\frac{31}{100}\times 35000=10850$

Now, calculate the percentage of Organisation D's employees relative to Organisation C's:

$\text{Required Percentage}=\frac{5250}{10850}\times 100$

Simplifying the fraction by dividing the numerator and denominator by 350:

$\text{Required Percentage}=\frac{15}{31}\times 100=\frac{1500}{31}$

Step 4: Solve the final division
Dividing 1500 by 31 gives:

$1500÷31\approx 48.387\%$

Rounding to two decimal places, we get approximately 48.39%.