Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Transmitter | BBCA | BBCB | D3&4 | ARQA | ARQB | Pol. | A.G. |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Allenheads | 27.0 | 21 | 24 | N/A | N/A | V | A K |
| Alston | 39.0 | 45 | 42 | N/A | N/A | V | B E K |
| Bellingham | 27.0 | 21 | 24 | N/A | N/A | V | A K |
| Blaydon Burn | 44.0 | 47 | 41 | N/A | N/A | V | B E K |
| Byrness | 27.0 | 21 | 24 | N/A | N/A | V | A K |
| Catton Beacon | 40.0 | 46 | 43 | N/A | N/A | V | B E K |
| Durham | 41.0 | 47 | 44 | N/A | N/A | V | B E K |
| Esh | 39.0 | 45 | 42 | N/A | N/A | V | B E K |
| Felling | 40.0 | 43 | 46 | N/A | N/A | V | B E K |
| Fenham | 27.0 | 21+ | 24 | 22+ | 28 | V | A K |
| Haltwhistle | 59.0 | 55 | 62- | N/A | N/A | V | C/D E |
| Haydon Bridge | 44.0 | 41 | 47 | N/A | N/A | V | B E K |
| Hedleyhope | 41.0 | 47 | 44 | N/A | N/A | V | B E K |
| Humshaugh | 39.0 | 45 | 42 | N/A | N/A | V | B E K |
| Ireshopeburn | 55.0 | 59 | 50 | N/A | N/A | V | C/D E |
| Kielder | 26.0 | 23 | 29 | N/A | N/A | V | A K |
| Morpeth | 22.0 | 28 | 25 | N/A | N/A | V | A K |
| Newton | 26.0 | 23 | 29 | N/A | N/A | V | A K |
| Seaham | 44.0 | 47 | 46 | N/A | N/A | V | B E K |
| Shotleyfield | 22.0 | 28 | 25 | N/A | N/A | V | A K |
| Staithes | 52.0 | 51 | 48 | N/A | N/A | V | B C/D E |
| Sunderland | 52.0 | 51 | 48 | N/A | N/A | V | B C/D E |
| Wall | 52.0 | 51 | 48 | N/A | N/A | H | B C/D E |
| Weardale | 44.0 | 41 | 47 | N/A | N/A | V | B E K |
| Whitaside | 44.0 | 41 | 47 | N/A | N/A | V | B E K |
Question:
What is the A.G. value associated with D3&4 of 46 and transmitter of Seaham?
Answer:
B E K