Plants undergo a process called photosynthesis, in which they convert light energy into chemical energy. During photosynthesis, plants primarily absorb light in the visible spectrum, which is made up of different colors. The colors that are most strongly absorbed by plants are blue and red.

Option 1: Blue and Red - This option is correct. Plants absorb blue and red light most effectively during photosynthesis. Blue light is absorbed by the chlorophyll in the plant`s cells and is used to power the photosynthetic reactions. Red light is also absorbed by chlorophyll and is important for the next step in photosynthesis.

Option 2: Indigo and Yellow - Indigo and yellow light are not as strongly absorbed by plants compared to blue and red light. While these colors may still contribute to photosynthesis, they are not the primary colors that plants rely on for energy production.

Option 3: Green and Violet - Plants do not absorb green light efficiently. Instead, they reflect and transmit most of the green light, which is why plants appear green to our eyes. Violet light is absorbed to some extent, but it is not as strongly absorbed as blue and red light.

Option 4: Orange and Yellow - While orange and yellow light can contribute to photosynthesis, they