Answer:
B
Step-by-step explanation:
The answer choice B says: "Last year, the OED, BBC Radio and the Forward Arts Foundation teamed up to find and define local words in the UK".
The questions asks us which detail supports that the Oxford English Dictionary relies on contributions from others.
This detail from choice B supports that, because it shows that people from other areas, such as the arts and the radio, helped the Oxford English Dictionary by defining words from the United Kingdom. This answer supports that the Oxford English Dictionary gets help from others, in many different areas.
Therefore, choice B is correct.