I understand your request for clarification. Here's the reasoning behind the correct selection:

Internal sources of recruitment are typically methods of filling job positions from within the organization. The options provided are as follows:

A. Transfers: This involves moving an employee from one job position to another within the same organization.
B. Promotions: Promotions involve advancing an employee to a higher-level job position within the organization.
 

These three options (A, B, and ) are considered internal sources of recruitment because they all involve current employees or internal processes.

The options D (Consultancy) and E (Newspaper advertising) are typically associated with external sources of recruitment, as they involve seeking candidates from outside the organization (e.g., through hiring consultants or advertising job openings in newspapers).

So, the correct answer is indeed:

1. A, B, and  only.