Need an answer with explanation for the following accounting question.

On June 1, of the current year, Jennifer Jacks sold 150 Telus Class A shares for $60 per share. She incurred brokerage commission costs of $200 on the sale of shares. Jennifer purchased Telus shares as follows: Jan. 3, of the prior year: 200 Telus Class A shares at $50 per share Mar. 3, of the prior year: 200 Telus Class B shares at $40 per share Feb. 1, of the current year: 100 Telus Class A shares at $44 per share What is the taxable capital gain realized by Jennifer on the disposition of the 150 Telus Class A shares in the current year? a. $9,000 b. $1,800 C. $800 d. $1,040 e. $1,600