【单选题】ToyBox is a toy manufacturer based in the United Kingdom. Which of the following indicates that the company is following a market penetration strategy?
A.
It introduces a line of children's clothing in the United Kingdom.
B.
It acquires toy rights for a popular cartoon character to boost its sales.
C.
It introduces its toys in the Indian and South-East Asian markets.
D.
It enters the U.S. market with a line of children's clothing.
E.
It develops a new line of educational software targeted at the current market.