The correct answer is that Thomas Clarkson and William Wilberforce were known for working to end slavery in Britain, so choice B. Thomas Clarkson helped found The Society of Effecting the Abolition of Slave Trade and helped pass the trade act of 1807.
An estuary<span> is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. </span>
