A particle is placed at the origin and a force 𝐹 = 𝑘𝑥 is acting on it (where 𝑘 is positive constant). If 𝑈(0) = 0, the graph of 𝑈(𝑥) versus 𝑥 will be (where 𝑈 is the potential energy function)

Question: A particle is placed at the origin and a force 𝐹 = 𝑘𝑥 is acting on it (where 𝑘 is positive constant). If 𝑈(0) = 0, the graph of 𝑈(𝑥) versus 𝑥 will be (where 𝑈 is the potential energy function)