For a spherical triangle ABC, pick up incorrect statement

• A. <img src="/_files/images/civil-engineering/advanced-surveying/82-4.3-1.png">
• B. <img src="/_files/images/civil-engineering/advanced-surveying/82-4.3-2.png">
• C. <img src="/_files/images/civil-engineering/advanced-surveying/82-4.3-3.png">
• D. <img src="/_files/images/civil-engineering/advanced-surveying/82-4.3-4.png">
• E. none of these.