Given the following series of number: 50, 30, 15, 45, 70, 80, 120, 60, 75.\nWhich of the following binary search tree is corresponding with given numbers? **(a)**\nmermaid\ngraph TD\nA[50] --> B[30]\nA --> C[70]\nB --> D[15]\nB --> E[45]\nC --> F[60]\nC --> G[80]\nG --> H[75]\nG --> I[120] **(b)**\nmermaid\ngraph TD\nA[50] --> B[30]\nA --> C[80]\nB --> D[15]\nB --> E[45]\nC --> F[60]\nC --> G[120]\nG --> H[70]\nH --> I[75] **(c)**\nmermaid\ngraph TD\nA[50] --> B[45]\nA --> C[80]\nB --> D[30]\nD --> E[15]\nC --> F[60]\nC --> G[120]\nG --> H[70]\nH --> I[75] **(d)**\nmermaid\ngraph TD\nA[45] --> B[30]\nA --> C[70]\nB --> D[15]\nB --> E[50]\nC --> F[60]\nC --> G[80]\nG --> H[75]\nG --> I[120]