In a state-of-the-art research project, a team of chemists is working on the development of a highly sensitive chemical sensor, 'Sensor S', for detecting trace amounts of a toxic industrial chemical in the environment. The development of 'Sensor S' involves a multi-faceted approach focusing on selectivity, sensitivity, and stability. The sequence of the sensor development is as follows: 'Sensor S' is fabricated using a nanomaterial-based transducer, designed to amplify the signal response to the target chemical. The surface of the sensor is modified with a specific molecularly imprinted polymer (MIP) that selectively binds to the target chemical. An integrated microelectronic system is then employed to convert the chemical interaction into a measurable electrical signal. Finally, the sensor undergoes rigorous testing in various environmental conditions to ensure its reliability and long-term stability. Based on this sequence, what is the primary challenge or objective in the development of 'Sensor S' for detecting the target toxic industrial chemical? Options: A. Achieving high selectivity and specificity for the target chemical B. Ensuring the sensor's durability and resistance to environmental factors C. Maximizing the electrical conductivity of the sensor material D. Developing a cost-effective and easily manufacturable sensor design Hints: Consider the role of each component and step in the sensor development and how they contribute to the overall performance of the sensor. Reflect on the importance of selectivity, sensitivity, and stability in chemical sensor design, particularly for environmental monitoring applications. Think about the key requirements for a sensor to be effective in detecting trace levels of toxic chemicals in diverse environmental conditions. Don't use chatgpt please provide valuable answer