T-shaped skills can be defined as those skills which are most desirably looked for in employees. A person with T-shaped skills possess good knowledge of skills and the ability to collaboratively work with other individuals. <em>The concept of T-shaped skills was coined by David Guest in 1991 and popularly used by Tim Brown, CEO of IDEO Design Consultancy firm. </em>The vertical line in 'T' represents individual's expertise in cross-discipline and horizontal represents expertise in Deep discipline.
So, an individual who can either test, design, or develop possess 'T-shaped skills.' Therefore, option B is correct.